What would've been the reaction of dead end liberals if the thing that finally caused the walls to close in on Trump was him having his brains blown out by an Iranian assassin before inauguration?
It's already effectively happened the moment Trump was clearly the winner. The "threat to democracy" rhetoric got shut off, Kamala and every media outlet swapped from "he's literally Hitler!" to "we must accept the results of this election".
As in the establishment? No acknowledgement that Trump was who he was, they'd just instantly use it to try to invade (and fail).
Rank and file? Probably a lot of horror, some would recognize that it's a good thing, but the vast majority would get 9/12 levels of racist against all brown people.