Many Euro countries have laws against saying nasty things about protected groups. Speaking your mind about Muslims in many Euro countries can actually land you a prison term. This proves that when liberals take over, fascism shortly follows. And believe me, liberals in the U.S. would like to be able to do the same things.
The advantage Cultural Marxism has over Economic Marxism is the former doesn’t require mass murder to be implimented. It takes longer but the slavery and terror it imposes is the same as the latter.