All of the Trump supporters that I know, and they count in the hundreds, are, WITHOUT EXCEPTION, bigoted, lazy and immoral. Level of education has little to do with it. Hence, they are ALL stupid. In the famous words of Mrs. Gump - "Stupid is as stupid does."
I have yet to hear any one of them make a cogent argument for supporting Trump. In fact I haven't heard anyone ever make such an argument.

"The liberals can understand everything but people who don't understand them."
Lenny Bruce

"The cleverest of all, in my opinion, is the man who calls himself a fool at least once a month."
Dostoevsky