I agree. The man is no genius. Genius implies he does this intentionally. In order to distract. He's always been this way. He is no magician, master charlatan or masterful manipulator. He is simply, a reactionary, an immature stream of consciousness without the needed intelligence to foresee anything beyond the present. Anything else is too much credit. Put simply, that such a man is successful in finance as well as in politics is a reflection of our society's ill health, as opposed to his own prowess.
He's shrewd; he has the skills of a conman (including good looks when he was younger), and because he began rich he's been able to be a "success" and avoid serious consequences with less intelligence than most conmen born poor would need to "succeed" on nearly as grand a scale.
I agree with your comment as far as his wealth allowing him to avoid consequences, and the truth is that in this country the wealthy often have a different system of justice than the poor. I disagree that he's shrewd. I really don't see it. He doesn't have the skills of a con man, at least not one that has any decent level of skill at his craft. He's fucking transparent. He's obvious - definitely not at all subtle. I've seen two-bit con men that could put him to shame. I'm no genius, and I can see him coming from miles away for what he is, and that is why many of us have trouble understanding his appeal. He is only one thing. He's a bigot, and so is supported by other bigots. Look, it's pretty obvious. The only time his base o' bigots gets angry with him is when? When he fails to enact the racist policies that got him where he is now. Whether it's the wall, immigration, etc...as long as Trump makes with the white superiority complex, his base will stick with him. The only other source of his base is Christian nationalism, which is just another form of bigotry.
There's only one person I can think of that MAY not follow Trump because of bigotry, and that is Scott Adams. He is a classic case of an intellectual over analyzing things to the point of absurdity. If you've ever heard him defend Trump...it's entertaining to say the least.