That's an important quote, going to the heart of the left's agenda. Especially those that want to be part of the ruling elite class of The State.
Again, look into The Frankfurt School for where many of their specific tactics originated.
I'm glad you brought up the Frankfurt school. She is describing Cultural Marxism. It's too bad that the uninformed immediately brand a person(we,us) a paranoid wingnut when we claim that this is an organized agenda, set in motion long ago. Marxists declared from the beginning that they would destroy America without ever firing a shot.