If you find this horrifying (and I hope you do, because there can be no moral justification for celebrating murder), then I encourage you to really think about whether we would not be better off without such extremist language poisoning people's minds. We have to try to stop escalating, or the cycle is going to destroy our society.
My conclusion is that you don't mind making apocalyptic statements about actions you think are dangerous to society, which sits uncomfortably with your asking other people not to.
This is a nonsense argument. It is possible that constantly making apocalyptic statements can result in an apocalypse, and saying that people should stop doing that is not contradictory.
The words you use matter. If trump is an existential threat to democracy, he should be assassinated. If you're not advocating for murderous escalation, then stop using those words (for example).
Who/what is defining assassination as a reasonable response to that threat, who/what maintains the list of words which can replace "democracy" in that section, and what happens when someone disagrees with the maintainer of that list?
At the same time, I do believe there are ways to share such statements while also reinforcing healthy ways to react at the same time. kryogen1c's example ending in "he should be assassinated" crosses the line from bigstrat2003's talk of apocalyptic claims to direct calls to violence about them - the latter of which I agree is bad teaching (but I'd still rather people be encouraged to openly talk about those kinds of statements too, rather than be directly pressured to internalize or echo chamber them).
This is why the first question posed about the statement from kryogen1c was "Who/what is defining assassination as a reasonable response to that threat". The follow on questions were only added to help highlight there is no reasonable answer to that question because it's the call to assassination which is inherently problematic, not the claim someone is a threat to the democracy here. The latter (talking about perceived threats) is good, if not best, to talk about directly and openly. It's the former (calling for assassination about it) which is inherently incompatible with a stable society.