I read it as the idiots being the majority of American, both the voters who voted for them and the ones who over the years kept voting for people who were plowing, fertilizing and sowing the field where something like Trumpist would grow (you know, undermining Rule Of Law, helping the few pillage the things of the many, completely destroying social mobility in America and so on).

Trump’s a clown but he’s not stupid (not especially smart, either, but still smart enough to say whatever it takes and play that dumb-person’s-idead-of-a-smart-person character to manipulate simpletons) and his handlers are most definitely not stupid.