Maybe there aren't any.

Generally, a racist won’t admit he’s a racist. And they tend to get a little less respect from me than a racist who’s honest about it. I like honesty. Even though I don’t like racists. At least when one is honest, it’s easier knowing what one is dealing with. Easier swaying an honest being rather than a deceitful one. But there’s another kind of racist, too. The one that really doesn’t know he’s a racist. And if he did, he might be convinced to change his ways. I know scores of white people who are racists. But I hardly know any black racists. Maybe there aren’t any. –Jim Broede