has anyone coined a term that encompasses the way the sect of chuds that are extremely detached, online, and irony-poisoned engage with politics as a sort of aura/schadenfreude/dominance/sadism farm

It's not vice-signaling because that's only a tactic, same with ragebait. Nihilism is too broad and contradicts with the bible-thumpers that also engage in this. It's like what Sartre describes in the "anti-Semites" excerpt. I really think there is a coherent phenomenon that encapsulates this. I think the best way I can describe it personally is 'bloodsport politics' but words are kinda failing me here. I might already know it even and could just be having a brain blip