Can you really imagine a far Right killing Kirk would be doing so because they “had enough of his hatred. Some hate can’t be negotiated out” ?

Yeah I can actually. A young white man radicalized by years of being terminally online in groyper spaces who already hated Charlie Kirk for not being extreme enough, who then started to date a trans woman (if the feds are to be believed on this at all). All the trans romantic partner angle gives is a more clear motive, but doesn’t actually explain his radicalization to the point of a targeted killing. Being a groyper does.