i would argue that marxism, socialism and anarchism, as consistent ideologies, are all fundamentally incompatible with collectivism, to the point that they cannot co-exist.

but, you get the exact opposite - from both sides of the spectrum - when you survey people on the question, and, you hear academics speak in equally confused ways about it, too, because it's so culturally ingrained - almost as though it's a consequence of some kind of hegemonic power confusing the idea for it's benefits.