He's selling a story of standing up to the government. That's a very popular story to sell. If he accomplishes what he says he's trying to accomplish (I understand that's a big if) then it would be tough not to call him one of the greatest presidents ever. No one else even says they're going to try to do what he's saying he's going to do. And two weeks in, he's following through with it.
Pretty much all super powers end with government corruption. And to me, it makes perfect sense why it happens. Of course a government is going to start small and grow from there. The longer a country stays a country, the bigger the government will get. It just keeps adding more agencies and more people to each agency until it eventually gets so big its impossible to keep in check. In an environment like that, with so much money to be made, corruption is going to happen. Our country is on a crash course to implode. If someone doesn't do what Trump says he's going to do, I'd give us 50-100 years tops. I get that you might not think that's where we are headed. But a lot of people do. And right now, Trump is the only one who can stop it because he's the only one who even pretends to want to.
So basically there's two options here. One is he's full of shit and he's really just trying to get even more wealthy. If that's the case, we are in the same boat we were in before Trump anyways. A crash course to implosion. The other option is he's actually trying to straighten things out before it's too late. If that's the case, he will either succeed or fail. If he succeeds, then everyone will eventually know it. We will lose our national debt. Taxes will be lowered astronomically, and everything will run smoother. If he fails, then he will go down as a villain in US history because the people writing history will be the ones he tried to take down.