It's weird how they can't seem to realize they're literally, exactly the same as trumpers. They're just tanky Qanon. It'd be funny if it wasn't so sad.
I'm fairly certain most of them are trumpers. They're far right 4chan trolls roleplaying as what they think leftists sound like (and they're really not very good at it), possibly for laughs, possibly to make leftists sound bad, probably both.
And some of them are Chinese and / or Russian shill bots.
Eh, I think you're making it too complicated. The simplest explanation is normally true. They're just brainwashed low intelligence goons forming a groupthink echo chamber. Instead of blaming brown people and "libruls" they blame capitalists, liberals etc.