Actually, I don’t think it is racist. It is likely at least partially racially-motivated, though it may be as much partisan as racial (white Democrats get similar landslides from African Americans).
Honestly, I think Americans are generally oversensitive about race. Conservatives are usually less-so, but many seem to be jumping on board now that it is politically expedient to cry “racism”.
People should be able to support a political candidate for whatever reason they want ... it is inherently a judgment call.
SnakeDoc
Sure people should be able to support a candidate for whatever reason they want, including racist ones. Nobody disputes that.
But they can be called on it, too. And criticized for it. and why not?