The suffragettes smashed windows, burned down buildings, planted bombs, and went on hunger strike in prison. They fill the films and the school textbooks. They were also the smaller wing of the campaign, and the one that set the cause back.

The larger wing has almost dropped out of the popular story. Millicent Fawcett led the National Union of Women’s Suffrage Societies, the constitutional suffragists, who held public meetings, ran petitions, lobbied MPs, and built local branches across the country. By 1914, the NUWSS had more than 100,000 members across over 500 branches. Emmeline Pankhurst’s militant Women’s Social and Political Union, the suffragettes, peaked at around 2,000.12 The big, patient organisation did the slow work of converting Parliament. The small, dramatic one is remembered.

The Bill They Nearly Won

Look at the years when the vote came within reach. An all-party Conciliation Committee under Lord Lytton drafted a bill to enfranchise some women on a property basis. The Commons carried the first version in July 1910 by 109 votes, then passed a second version in May 1911 with a majority of 167.3 The constitutional strategy was working, and a limited franchise sat close enough to touch.

Then the WSPU torched it. In November 1911, after Asquith floated a rival manhood-suffrage bill, the Pankhursts answered with an official window-smashing raid along Whitehall and Fleet Street, striking newspaper offices and ministers’ homes. Support in the constituencies fell, MPs who had backed the bill began to waver, and in March 1912, the Conciliation Bill went down by 14 votes.3 The militants handed wavering politicians a reason to walk away, and the politicians took it.

The campaign then escalated past anything that could pass for persuasion. Between 1913 and 1914, the WSPU set off at least 337 arson and bombing attacks, around 21 a month at the peak. Emily Davison planted two bombs at Lloyd George’s house in February 1913, and Pankhurst was sentenced to three years for the plot. Police arrested more than 1,300 people before the war halted the campaign in 1914.4 The historian Martin Pugh, who challenged the standard account, is blunt about the result: militancy damaged the cause, and no grounds support the idea that the WSPU moved public opinion its way. It hardened the charge that women were too reckless to trust with a ballot.5

The mechanism behind that failure reaches far past 1913. A movement holds two kinds of people: those who want to persuade the unconvinced, and those who want to prove their commitment to the already-convinced. The second group reaches for tactics whose real audience is its own side. I call this performative moral coercion: action chosen to display moral seriousness to allies, and to force a result the argument has not yet won, rather than to change the mind of anyone outside the room.

The phrase has three parts, and each one earns its place. It is performative because the aim is to be seen acting. It is moral because the currency is righteousness rather than evidence. It is coercive because the method is pressure: the disruption or the public shaming, not the argument. A movement in this mode stops asking how to win a sceptic and starts asking how to signal hardest to a believer.

The Prig

The individual behind the phenomenon has an older name. A prig performs morality. They treat virtue as a badge of rank and take more offence at other people’s failure to honour it than at any actual harm. The word, once meaning a petty thief, drifted through the eighteenth century to mean an affectedly precise and pious sort, and hardened in the nineteenth into the sense we use now, the self-righteous moraliser.6 The type recurs in every society, and only the code changes. From Christian virtue in Victorian England to Party orthodoxy under Stalin to whatever runs loudest today.

Macaulay captured the type in a single line. Writing about the Puritans, he said they hated bear-baiting not because it caused the bear pain, but because it gave pleasure to the spectators.7 The jibe, though unfair to a great many actual Puritans, is accurate. The prig cares more about their standing as the one who objects than about the wrong they name. The bear is a prop.

The appeal goes beyond vanity. A strict, shifting moral code allows a person to outrank their betters. Master this season’s rules, and you can be cruel, idle, or dishonest in every other part of your life and still look down on the kinder neighbour who used last year’s word. Orthodoxy becomes a cheap substitute for goodness, rewarding whoever has the least of the real thing.

A movement full of prigs drifts into performative moral coercion on its own. Persuading an opponent ends the prig’s performance and shares the credit, so the prig denounces instead and keeps both the stage and the applause. The prig is not a hypocrite. They believe the cause. They have found that it pays them best when they police it rather than win it.

The Limits of Contrast

Disruption does change something, but not the mind it targets. Herbert Haines found that militant civil-rights activists made moderates like the NAACP look reasonable by comparison, and that funders gave more to them as the radicals grew louder, an effect he called the radical flank.8 Just Stop Oil shows the modern version: after a week of blocking the M25, support for the moderate Friends of the Earth rose a little, even though most people disliked Just Stop Oil itself.9

This runs on contrast, not persuasion. The road-blocker did not convince the driver; they made someone calmer look like the adult in the room. About 64 per cent of Britons disapproved of Just Stop Oil, and up to 78 per cent thought such protests hinder the cause they claim to serve.10 Fawcett’s union swelled while the militants raged, which looks like the same effect, but a bigger membership roll is not a passed bill, and the bill the militants killed in 1912 was real.

Contrast can raise sympathy, but not always: Omar Wasow found that when 1960s civil-rights protests turned violent, it pushed the public toward law and order and cost the movement support, the reverse of the flank effect.11 Even when contrast helps, it does not deliver the win. What performative moral coercion fails at is the thing it claims to do: winning the argument with the unpersuaded. Once the tactic becomes the story, the public debates the tactic, and the cause waits offstage.

Why Signalling Beats Persuasion Inside a Movement

This keeps happening because the incentives inside a movement pull against the incentives of the cause. Persuading a sceptic is slow, private, and invisible. The quiet conversation that changes one mind over the course of a year earns no applause. Blocking a motorway, breaking a window, or naming and shaming a heretic is fast, public, and legible to your own side. It buys status now.

The activist who wants standing in the group is rewarded for the coercive, visible act, while the patient organiser goes unseen. Fawcett’s hundred thousand members left fewer images than one woman at the Derby. The movement optimises for the gesture that plays to the believers, and that gesture is often the one that hardens the people outside it.

The coercive wing then turns on its own moderates, since visible purity signals commitment to allies as loudly as any attack on the enemy. The militants dismissed Fawcett’s suffragists as timid, and moderate green groups keep their distance from the road-blockers. The energy that might have moved an undecided voter goes into policing those already on side.

The suffragists won the vote with arguments, organisation, and time, and watched the louder wing collect the credit. The pattern holds across more than a century. Once your tactic becomes the story, you have stopped arguing for your cause. You are asking to be admired for how much you care, and the people you need to convince have already stopped listening.


  1. UK Parliament, “Start of the suffragette movement”: https://www.parliament.uk/about/living-heritage/transformingsociety/electionsvoting/womenvote/overview/startsuffragette-/↩︎
  2. Historic UK, “Millicent Fawcett”: https://www.historic-uk.com/HistoryUK/HistoryofBritain/Millicent-Fawcett/. NUWSS membership grew from around 50,000 in 1905 to over 100,000 across more than 500 branches by 1914; the WSPU numbered roughly 2,000 by 1914. ↩︎
  3. UK Parliament, “Militancy and Conciliation 1900-1912”: https://www.parliament.uk/about/living-heritage/transformingsociety/electionsvoting/womenvote/case-studies-women-parliament/suffragettes-in-trousers/militancy-and-conciliation/. See also Spartacus Educational, “The Conciliation Bill: 1910-1912”: https://spartacus-educational.com/Conciliation.htm↩︎ ↩︎
  4. “Suffragette bombing and arson campaign”, Wikipedia: https://en.wikipedia.org/wiki/Suffragette_bombing_and_arson_campaign↩︎
  5. Martin Pugh, The March of the Women: A Revisionist Analysis of the Campaign for Women’s Suffrage, 1866-1914 (Oxford University Press, 2000): https://books.google.com/books/about/The_March_of_the_Women.html?id=Hr0l-ugTy4IC↩︎
  6. “Prig”, Wikipedia: https://en.wikipedia.org/wiki/Prig↩︎
  7. Thomas Babington Macaulay, The History of England from the Accession of James the Second, vol. 1 (1848). ↩︎
  8. Herbert H. Haines, “Black Radicalization and the Funding of Civil Rights, 1957-1970”, Social Problems, 1984, and Black Radicals and the Civil Rights Mainstream, 1954-1970 (1988). Overview: https://en.wikipedia.org/wiki/Radical_flank_effect↩︎
  9. Social Change Lab, “The Radical Flank Effect of Just Stop Oil”: https://www.socialchangelab.org/post/the-radical-flank-effect-of-just-stop-oil↩︎
  10. Colin Davis and others, “Just Stop Oil: do radical protests turn the public away from a cause? Here’s the evidence”, The Conversation: https://theconversation.com/just-stop-oil-do-radical-protests-turn-the-public-away-from-a-cause-heres-the-evidence-192901↩︎
  11. Omar Wasow, “Agenda Seeding: How 1960s Black Protests Moved Elites, Public Opinion and Voting”, American Political Science Review 114, no. 3 (2020): 638-659: http://www.omarwasow.com/Protests_on_Voting.pdf↩︎