If you call Trump a racist, a lot of his supporters will ask you something like "When has he done anything racist? Show proof!"
If you show them proof, they'll play semantics with you and try to argue about what it means to be a racist. They'll downplay or ignore any examples you bring up.
It actually doesn't matter if we can prove Trump's a racist. The fact that he can only get 3% of black people's approval... when that number is extreme compared to the entire population....well that says it all.
Imagine not being a racist, but still having an entire race of people despise you.
Instead of calling Trump a racist, we gotta start asking him why he can't get any black people to support him.
They'll probably blame it on the media brainwashing us, despite that fact that the media gives him more favorable coverage than black people tend to get.