Group identity with heapings of collectivism, moved away from class and pushed towards identity politics. The concept of intersectionality would be an example, as long as you realize the ultimately oppressed cross-hair of intersectional would be the individual, but individualism tends to get flushed out due to the need to place human existence along power hierarchies and cries of oppression. It's this odd thing where your personal identity isn't your self but the sum of group identities of which you have no choice. Free will is often the end boss in a cultural marxist view of things.
edit: I could add that the lack of detail in looking at the experience of identity and the refusal to handle the complexities are the ultimate pratfall of the ideology, but I think that the concept of free will lurks around as some unspoken enemy of the belief system.