Nobody alive today, that isn't in a supremacist group, is responsible for what those groups did in the past, nor has any need to "hide" anything.
It's ludicrous that you would try to associate modern conservatives with this, and no, a few examples is not proof of the majority, just as a few Democrats doing XYZ thing are not proof that the rest of them are guilty of same thing.
You need to stop stereotyping and see people as individuals, including individual accountability. Blanket stereotyping, that's essentially what racism is too so you have the same mental defect, just using different information to arrive at the false premise.
It's still just an excuse to hate, plus efforts to spread hate, then that hate goes in dozens of different directions, not the result you thought it would be.