Not much hope for that, realistically speaking. From the
OP:
In 2016, researchers found that the Republican party had an “authoritarian voter” problem that it could not control, even if it had wanted to. “Trump, it turns out, is just the symptom,” wrote Amanda Taub in Vox. “The rise of American authoritarianism is transforming the Republican Party and the dynamics of national politics, with profound consequences likely to extend well beyond this election.”
That should tell us all, even if Trump is going to be defeated, the cause persists. Actually, being deprived of their Dear Leader might worsen the problem. They are going to be left without their authoritarian strongman-protector, which would increase their fears, which in turn would activate (even more) their authoritarian streak. Whoever thinks with Trump gone the problem would subside may well have a rude awakening ahead.
Of course, it is possible to control that “authoritarian voter problem”, and the solution is pretty much in the text: Reduce fears, unreasonable fears in particular, and the authoritarian activation would, if not go away, at least ameliorate. That task would mostly fall on the GOP. Not that I have much hope they'll see the light and do the right thing, but...