Leftist solidarity has always been tenuous, even on the best of days. Twas always so. Skunkapes don't like jews, homos, feminazis, or anyone white (even their pet wiggers). Jews consider any race not jew beneath them. Islamaholics see anyone not islamaholic as kafir, to be slaughtered or enslaved. Feminazis are all misandrists to one degree or another. Commies and socialists want to hang anyone not commie or socialist. These factions of rabid dogs would require very little incentive by a wily provocateur to turn against each other.