The narrative: cultural Marxism, social justice and political correctness explained
An introductory video to cultural Marxism and social justice, followed by Bill Whittle telling us the history behind political correctness, critical theory (the name that cultural Marxism advocates give to their methodology), and its historical origins in the Frankfurt School of Marxist Communist thought.
In related news: I've been working on rescuing I've rescued the sabotaged Wikipedia article about cultural Marxism -- which over years was diluted by edits subtracting information from it, and ultimately turning it into a redirect for a "conspiracy theory".