Check out the night of the long knives. The night Hitler no longer needed the socialists to take power, he was in power, so he did them in-almost to a man. But Hitler kept the name NAZI.
Still, socialists fostered his rise to power.
They are dependable that way. They like to help tyrants establish a toe hold. Then they're all confused when the tyrants start to kill them off.
This is what happens when you think it's okay to subjugate the masses to an ideal...when you think it's okay to trample individual rights, to do despicable things in the name of a greater good (kill for life, lie for truth...) You cannot do those things and expect anything except death, oppression, despair to come out of it.