Maybe you missed the sentence that began with this (I wasn't disagreeing with you):
'I also don't think Trump is a Nazi....'
The Nazis were anti-democratic. Trump at least pays some kind of lip service to democracy (though his promotion of the baseless 'Big Lie' conspiracy theory following the 2020 election suggests that his relationship with that system is tenuous to say the least).
Also, populists like Trump imagine that they are expressing the will of the people.
Contrastingly, Nazis/fascists are authoritarians who don't trust the vox populi.
I suspect most people would struggle to define what a Nazi is.
I think Trump is more an imperialist
- emperors lived by being popular and having enough people behind them, or the right people. I think he sees a system which re-elects the incumbent as very acceptable.
- He'll certainly choose the next Republican if he wins and expect to pull the strings. He's got a relative in charge of the party, so if he likes the idea of a dynasty, that's eminently doable - the only problem appears to be that his kids don't seem to have anything appealing about them.
- He's vengeful and I don't think there's any doubt that he won't go after perceived 'enemies'.
- He definitely likes making money for himself, and enriching those who will sustain his power.
He will doubtless talk repeatedly of a third term, but that seems all but impossible to force through, and any attempt to do so would get a backlash in elections to come which would prevent it.
I don't know how Congress is looking for after the elections.
I think he's learnt a bit from why he lost the last time and isn't making so many actions that annoy people. If things like abortion don't motivate votes for Biden, he doesn't need to be as OTT as he was four years ago.