...of course it's going to be hard to envision what black conservatives are thinking.

The ones I've encountered tend be religious. Or skeptical of government. Or super pro black (i.e. everything should be done within the black community without the help of outsiders)

Note that I am talking about conservatives. Not Trump supporters. Or Ted Cruz voters. Conservatives.

There is nothing inherently white supremacist about conservative philosophy. Some use it as a platform to push white supremacy. But that does not make the ideas of conservatism supremacist.

Falling back on that argument is just a way to delegitimize with little effort. No different than the guy whose only line is liberals are commies.