No one would elect Donald Trump to be the next Pope. Well, maybe Trump would do so himself, but few others would burn their ballots into white smoke for the thrice-married former president, if only because few think of him as a pious or godly person.
But the presidency is not the papacy. And while Trump would be horrible in the latter position, he was not at all bad in the former.
The prospect of Trump returning to that job has absolutely terrified the people who directly benefit most from him not holding it.