It's actually as silly as it sounds, a form of revolutionary hair-splitting that reminds us of Monty Python's People's League of Judea versus the Judean People's League, but the adherents take such distinctions very seriously indeed and are willing to shoot one another over them. They certainly did in revolutionary Russia.
I'd agree. Also, a lot of what people object to today was already underway before the German emigres got here, though it was much weaker than today. The left was bigger than just the Frankfurt School and American leftists had already begun looking for sources of discontent to exploit.
It’s the unholy confluence of Marxism and Nihilism.
The two “great gifts” of German thought.
Worse, as a bastard child it compels action and remedy.
The new stream is pure Relativism, and drives toward the most inhuman of actions.
It allows any human behavior, both individual and the state.
And while CRT is all the rage now, Critical Theory covers the broadest range of human existence.