Earlier quoted context omitted.
Do you understand what schizophrenia entails? If it makes you uncomfortable that's one thing, belittling him as a "racist hick" is another.
See my post below. He is a racist hick, who happens to be ill. If that's "another" thing, then so be it. Don't really care which came first. I will not let racists duck undercover of his illness. I stop short of being genuinely upset at him, but hate speech is hate speech. Since he has a large-ish audience, his ideas are becoming part of culture. Agree with him or defend him or apologize for his racism all you wish…
Being schizophrenic is a serious problem, and his technical achievements in the face of them are notable. But it's not a free pass for everything. We can distinguish, for example, between people with mental health problems who are danger to themself and others and those who are not.
It's one thing entirely to rail about aliens, because aliens aren't real. It's another use racial invective and epithets against racial and cultural minorities, because Jews and black people are absolutely real.