The next Crass single, 1980's "Bloody Revolutions", was a benefit release with Poison Girls which raised £20,000 to fund the Wapping Autonomy Centre. The words were a critique (from an anarchist-pacifist perspective) of the traditional Marxist view of revolutionary struggle, and were (in part) a response to violence marring a gig at Conway Hall in London's Red Lion Square at which both bands performed in September 1979. The show was intended as a benefit for the so-called "Persons Unknown", a group of anarchists facing conspiracy charges. During the performance Socialist Workers Party supporters and other anti-fascists attacked British Movement neo-Nazis, triggering violence. Crass afterwards argued that the leftists were largely to blame for the fighting, and organizations such as Rock Against Racism were causing audiences to become polarised into left- and right-wing factions. Others (including the anarchist organisation Class War) were critical of Crass's position, stating that "like Kropotkin, their politics are up shit creek". Many of the band's punk followers felt that they failed to understand the violence to which they were subjected from the right.