1. Actually, we have no idea if Trump is really a "bazzillionaire". He refused to release his tax records and most of his financial statements. We DO know he has LOST a billion dollars, much of which was money he accumulated from his father directly or indirectly. In fact, his lack of transparency points to just the opposite.
2. Where is the proof he's intelligent? His claims alone? Because there is no evidence he's some kind of genius.
3. Numbers don't lie - if you can actually get the numbers. Again, Trump refused.
4. What proof is there he can't be bought? We don't know his worth, but we do know that he has not even come close to providing his own campaign with the self-funding he claimed he would make; that he has not contributed to charities at anywhere close to the amounts he has claimed; that he has funded worthy causes at anywhere near the rates he's claimed.
5. He CLAIMS to be a hard-ass, but in the one instance in which he had an opportunity to prove it - the meeting with the Mexican president - he chickened out. But more importantly, hard asses don't get things done. They make enemies. To do anything, he needs both chambers of Congress to agree. He's pissed off both parties, and has no chance of passing anything of substance. And he can claim he'll build a wall or renegotiate trade deals - but again, without Congress' approval, he doesn't get anything done. He's pissed off almost every demographic that he needs to push an agenda.