Better off Trump winning, doing 4 years and then that's the end of him. If he loses the election he'll hang around like a bad smell for the next 4 years (probably stage another coup too) and run again in 2028. We'd be finished with him now if he'd have won in 2020
He's old and overweight, so age will take care of the Trump problem before too long. And honestly, aside from the heartburn over his chances of winning, I'd rather have Trump keep running and losing vs. some of the other options.
The problem this time around is the astonishing weakness of Biden as a candidate, which puts Trump at risk of squeaking out a win again. I think Nikki Haley was correct in her NH speech that whichever party dumps their senior citizen boat anchor first will win the 2024 election -- but if we get Biden vs. Trump redux, it's going to come down to what the economy feels like in November, what's going on with the southern border, and whether Trump gets convicted of anything before the election. The economy is anyone's guess -- I don't see the price gouging on food magically disappearing by then, which is one of the major issues for lower-income folks. The Republicans seem intent on doing nothing about the border until the election so they can run on it as an issue. And so far Trump has been successful at procedural moves that could delay his federal trials, so the chances of a pre-election conviction continue to dwindle.
Maybe if Trump wins but the Republicans lose the House we could get a third impeachment when Trump decides to blanket pardon himself or direct the DOJ to drop his prosecution, and maybe just enough Republican senators could decide enough is enough, and booting Trump to give his VP a head start as an incumbent for 2028 might look appealing to them -- but I doubt it.
If Trump gets elected, he'll never leave.
I agree that he'd attempt this, but at the end of the day I would still expect the Secret Service and/or the military to force him out the door on Jan 20, 2029. That said, by that point he may have already exited NATO, told Europe to go fuck itself, bombed Mexico, and started building the northern border wall, but who can say.