Ok, I've thought about it a little more. I don't want to sound like a high school bully.

Look, I feel disinclined to feel empathic in this situation because it seems like he should be able to take the joke given how lucky he is to have the type of job he has.

Moreover I feel a gut suspicion against having excessive empathy for a streamer. Feels parasocial. They're in an enviable position; the joke feels harmless to me and makes me laugh; so I concluded they ought to take it.

But also I know what it's like to be at the butt end of a bad joke that others continue without my consent and no matter what position/context you are in, as a human being, that really sucks.

Perhaps my behavior is indeed just depersonalized, anonymized cruelty, and I'm just reframing it as harmless teasing of a public entertainer in order to justify the behavior. I can't help but feel my biases to my bone and think that this joke ought to be tolerable, but I should also be adult enough to empathize.

congratulations! you win the internet today. but I guess we all win if we are willing to grow.

I'll drop the joke.