Not that they'd ever do it anyway, but the problem with a small-g narcissistic god in charge of your party is that now the party hardcare are in charge. I reckon that anyone super-electable against Biden right now would be 1)relatively young, he'd leverage that and 2) more moderate than Trump's far-right hateful rhetoric. You don't see too many of those types in the GOP anymore, because they would have been chased out for being RINOs.
In one sense, I welcome the GOP's plunge into insanity (from my perspective) because they really are going to have a hard time walking it back. I disagree with even a sane GOP on important issues (to me) like the environment, and really just about everything else. I want the damn party to dwindle. Abortion, now that they are the dog that caught the car, might lose them this election. The problem--they actually killed Roe v Wade, and still might actually win despite their insanity, which tells you a lot about this country. Hell, they are apparently making inroads with minorities, which is like chickens voting for Col. Sanders, but whatever man.