The wild and hysterical extremism of the global left is the most destructive political force in the west. Change my mind.

My headline is my contention: the wild and hysterical extremism of the global left is the most destructive political force in the west. Let’s start with some definitions, in accordance with my old-fashioned notion that communication and understanding work best when people are talking about the same things. By “the global left” I mean the…