He's a dumb Chicago pol out of his depth and the country is on autopilot. Since we have decent technocrats in responsible positions, that means some things will go OK. Since in others (budgeting, grand strategy) we rely on pols, others will be mucked up royally. That is quite completely all.
He’s a marxist. Ineptitude means nothing when you have marxists controlling both houses of congress as well.
Just on his military slashing alone, he is more dangerous than any president, ever.
And FWIW, Jimmy Carter nearly lost the cold war to the USSR in four short years.
Ummm, you left out his tinkling on our Constitution.