Except, they're not really leftist; most of them support authoritarian regimes, like Russia and China. I've engaged with them about the war in Ukraine, for example, and their opinions on the matter ranged from "Ukraine should just let Russia win, because war is bad" to "Ukraine is full of Nazis, so go Russia". If I had to make an historical comparison for them, I'd say that they're basically like Mao's red guards - kids with a little schooling under their belt who were nevertheless dumb enough to join a cult of personality for a bloodthirsty maniac.