Two wings on the same bird

That is a question with a complicated answer. In short, cultural Marxism is a revolutionary leftist idea that traditional culture is the source of oppression in the modern world. Cultural Marxism is often linked to an insistence upon political correctness, multiculturalism, and perpetual attacks on the foundations of culture: the nuclear family, marriage, patriotism, traditional morality, law and order, etc. The fact that this is the short answer shows how controversial the subject is.

https://www.urbandictionary.com/define.php?term=cultural%20marxism
https://en.wikipedia.org/wiki/Frankfurt_School#Cultural_Marxism_conspiracy_theory

Some people here may mean it that way, but I don't. For me, while I disagree with nihilism I take modernism on a case-by-case thing.