Except her complaint here is a WE WAZ KANGS-level of implying that white Europeans stole everything that could be considered their culture. Presumably because she so fully believes her own bullshit that she thinks white people from all of history are incapable of having their own culture simply because they are white.
So she hates white people so much that over two millennia of history with thousands of distinct groups, tribes, cities, states and countries, none of that involves a development of their own culture - no, that was all appropriated from other peoples. All of it.
Even with the unwarranted benefit of the doubt that she's being casually hyperbolic and would accept being called out on it, it's an idiotic, wilfully ignorant thing to say. With her known posting history, though, it's more likely she's actually more extreme than the 1619 Project bitch in terms of regarding white people as inhuman devils.