Thanks for the clarification, but I still don't get this kind of humour.
Relax, I am not Twitch. I am just commenting. Nobody is getting banned because of me.
Personally, if I were to decide, I would consider some temporary action (maybe just a warning) against some of the people in the video, because the alleged joke (which I don't get) is disgusting, and the reactions of some of the people in the video are also very troubling to me. Most of them look apathetic, as if the shocking discourse was a completely normal position.
That's still a ridiculous reaction. And I know you're not Twitch, but this type of rhetoric is harmful when it does actually come time to take action against an offense by a streamer.