I don't agree, he's desperately trying to win now at all cost, because he knows that if they don't get in power and start turning things into a dictatorship, that they will start losing and never be able to win again with their horrible policies.
The problem is, you're at least a decade too late for that to accomplish anything.
However, what you need to do is just start recording them saying this shit. Don't respond, don't react, just pull out your phone and start recording them. See how quickly they STFU.
I disagree. They don't believe the insane shit (we've repeatedly seen this, like the Fox communications), but they know the brainwashed, braindead morons they're exploiting to keep power do or will so they keep with it. There's a few of the more recent fringe morons like the howler monkey women but even they don't believe (although honestly that's because they're simply too stupid to understand much of it either way) a good chunk of that stuff they're just doing it because they think it pisses off liberals.
What I'm talking about is, they don't believe slaves were better off, but they definitely are racists and want to keep black people down and also don't want to address horrible shit that people like them perpetrated in the past, like slavery. Functionally it doesn't matter if they believe it or not though, as they're still operating as though it does.
Its a cult, and we perpetually see that the higher ups in cults don't believe the bullshit, they push it for control and power.