"Anyone who thinks Biden and Trump are comparable is seriously deluded."
"And I'm not a particular fan of Biden or think he was the best Democratic candidate."
I don't think it's really the point though, not directly.
The problem is that large numbers of Americans have been completely left out, economically due to globalism, and they also have very much been politically disempowered. They have no political voice.
That's something that has come about because of the actions of both political parties, and people have two choices really. They are used to making a choice, not based so much on the individual, but the things they are likely to accomplish, or a generalised sense of the direction they are going in.
Those who have voted Trump based on their preference for policies are still very aware of who Trump is and that he can't be compared to Biden. GOP played with fire and got burnt. But they knew they were playing with fire. The vast majority heavily criticised Trump before he got them the Presidency, but know they can work with Biden. Like I don't class Pence and Trump in the same category. Or George W., or even Dick Cheney. They wouldn't have directed a crowd to the Capitol if they lost re-election.
Then there are the hard-core Trump fans, and those, I'm afraid, ARE seriously deluded. I do think they know it at heart, but it suits them and their agenda.