Because people will do almost anything to defend white supremacy. For example, when someone called a person out for saying social issues shouldn't matter, you stepped up to defend that premise, even while claiming you weren't supporting it. The idea that anyone might have a different perspective about being shot in the street or denied the vote and we should listen to that perspective and not discount it, the idea that other people are human and should be treated that way; you turned into this:
It was a great example of exactly why Donald Trump took over that party and why he won that election, because this is the issue that defines America.