He speaks to their "truths." He feeds their hopes. He bolsters their fear of a diminishing relevance. He says things they want to hear in a way that they understand.
He's the only one who holds a branch out to them and they clutch on to it like the trumpanzees they are.
"You're not the problem, it's those other guys" is a very appealing and hence powerful message that people want to believe (in fact, the worse things are, the more they want to believe it) so it easilly bypasses rationality.
You might have noticed that in America it's not just Trump using it or even just his party.
For a conspiracy or a cover up to be real in this day and age it needs to be small, otherwise it just involves too many people to stay secret.
Trump and his “believers” are a different story. They know it’s not real, instead they’ve all silently (and not so silently) agreed to reject reality and substitute in their false god’s reality.
I mean, every single group mentioned has proven not to be trusted. You think the history books just coincidentally happen to all be written by the good guys? There's that one time the smart people marketed this safe and effective diet pill. FDA approved. Yeah, turns out it killed you. And then, orange guy.
Also, you seem to be the kind of guy that likes to be completely accurate in the ideas you present, so I believe the word you're looking for is "charges". There have been no convictions.
as bad as trump is obama and biden chained a presidential candidate to chair for eight hours to keep her from debating with them and to make sure it stays only two parties
biden and harris immediately went back on campaign promises and fired staffers who admitted cannabis use
national police reform promises have stalled in his time in office over policing have gotten worse looking at you cop city in georgia
national health is at risk of going in the gutter even further and that was another failed promise
list goes on
but hey vote biden he is not facist or as bad plus he is not trump