Never forget: Trump doesn't truly care about anything, except himself. Not even his family (not even Ivanka). He used certain hot-topic issues to get himself elected and thereby stay out of jail, but now he will promptly drop and forget all about them. He can't be elected again, so he won't even bother campaigning. I mean... maybe he'll become a king and nobody will ever vote again, but even there, he won't be "appealing to people's worst instincts" anymore - his election not only is a gamer-changer, it has literally CHANGED THE GAME. Except he's so terribly old, that sometime during his next term he will go the route of Biden and just kinda sit down and rest but never get back up.
We saw this shortly after his first election, where the literal KKK got so terribly disappointed in him for not showing up for them. Granted, he shifted the scale, but nowhere close to what they wanted. And after his impeachment, he failed to show up for the people who were put in jail for showing up for him. And even before all of that, when he was given the Republican nomination prior to his first election, he said that he'd fix campaign financing and unfairness, then within a week (probably a day) said that he was never going to do that. Hey, remember "Lock her up"? Yeah, she's not locked up, and never will be.
Trump LIED.
So I get why you are feeling down - but don't allow yourself to fall too deep into depression. That's what they want you to do - to give up without a fight. But you should not, b/c there's work to be done - you are needed:-).