Ultimately, Marxism is the doctrine of eternal revolution. The economics is just the facade for the real agenda: split people into groups, get those groups to fight each other, and then take over once the culture has devolved into chaos.

It's cultural Marxism. Another term is Critical Theory, named after the Frankfurt School that taught that society has been secretly oppressing people for centuries and only through deconstruction of said society can "the people" be "free".