Mel Brooks had them down to a tee, half a century ago. Blazing saddles may as well be a documentary.

It absolutely is, sprinkled with some, sadly, hard truths about ourselves.

" Violence, naked force, has settled more issues in history than has any other factor, and the contrary opinion is wishful thinking at its worst. Breeds that forget this basic truth have always paid for it with their lives and their freedoms"

Robert A. Heinlein, Starship Troopers

They are, I’m afraid, new left.