In case you had any doubt about whether Trump was a racist, he's just made it very clear: of course he is.
I've said this before: Trump is a racist, and supporting racists is racism. That means that the people who support Trump are racists. The whole claim that somehow they are good people who don't understand who they're voting for is insulting their intelligence: no, they're not too stupid to understand that Trump is a racist, rather they voted for him because they understand and support what he is, because they also are racists.
And yes, that does mean that there are indeed a lot of really vile people in the US (as well as elsewhere): a lot of people are just horrible, it turns out. Anyone who has been paying attention, at all, knows that, so don't act all surprised.