Maybe you are seeing it but I don’t see it at all.

I am, but I'm glad you aren't seeing it.

Feel free to check the public modlogs, especially on Lemmy.world and communities like !politics@lemmy.world. Their Rule 6 specifically prohibits celebrating death and advocating violence, and moderation actions are publicly listed in the modlog. Spend a week or two checking the modlogs every morning and you'll get a much different picture than you get just from browsing your normal feed.

I'm guessing you also weren't spending much time in the political threads during the Charlie Kirk shooting, the assassination attempts against president, the No Kings protests, or the Luigi Mangione news cycle. Lucky you. Those were exactly the kinds of threads where I repeatedly saw guillotine comments, "kill the CEOs" types of comments, "violent revolution is the only thing that will change anything," and comments wishing an attempted assassin had better aim.

It's also the reason that I now stay out of most political threads on Lemmy.

That doesn't mean every Lemmy user talks like that, obviously. But saying you've personally never seen it is very different from saying it doesn't happen.