You're drawing conclusions from the most extreme politicians you can find in the deepest backwaters of this nation. The only reason we hear so much about them is that running news items on what they do is like running campaign ads for everyone else.
Storm Thermon has a black daughter whom he supported, and associated with. When she was around 30 or so, people even assumed she was his mistress until he reluctantly admitted the truth.
He’s hardly the most extreme politician on race. He’s more like some people who are stereotype others but make exceptions for their family. True extremists would have nothing to do with their mixed children.