Trump embodies fascism on an instinctive bedrock level. By the time he saw the democracy, he was already a man, and it was nothing to him but stupid.
It’s unlikely that the person that replaces him will be as spiritually aligned with fascism. On the other hand, just like with Hitler, Trump’s pure stupidity and laziness is the one bright spot in what would otherwise be an unbroken landscape of horror that we’re currently driving into.
I think replacing him, atop the machinery that’s been created at this point, with someone who really knew what to do with it and could apply themselves to getting it done, would be probably the worst catastrophe possible out a set of possible futures that doesn’t have any shortage of catastrophes.