I don't really see how the "fuck Nazis but also Communists" symbol is a unifier. Does using the imagery of the most historically pro-fascist antifascist organization, the one that led to the foundation of Nazi Germany, not put off any communists or, like, people who are at all familiar with the history of antifascism? Is the "everyone but the communists" symbol really essential to maintaining a united front?

Also, that same group sold Liebknecht out to the fascists...