Jokes about murdering 'capitalists', whatever you may think of them, are a) politics posts and b) posts about death/killing. They should be CWed, always, no matter how hot a take you think they are.
I admit I don't see a lot of humour in "bloodily purge the elite" jokes, as a historian (it's amazing how the "elite" description stretches when put into practice). But even if you think it's hilarious fun, it's still killing-politics and you should still cw it.