How about people lately getting cancelled for "damn, he missed" jokes?
It's an obvious joke to make, half of people (even more so of us outside US) are thinking it - but 99%, I'd like to think, as a joke, most people don't actually want Trump killed.
Does it make a difference whether a common person or a professional comedian says it? With a professional, it's even more clearly a joke. But if we draw a line there, where is it; isn't a streamer/youtuber a professional comedian?
And there's a good argument why this joke shouldn't be made. Among millions of people, it only takes few, at worst even one, who doesn't think it's a joke, one who takes it as agreement and encouragement to take another shot (pun intended).
I personally think people are being treated far too roughly for saying out loud (or more often typing) what so many of us were thinking. But I also think you shouldn't say it, much less post online.