I disagree. The difference between being white and racist and black and racist is how much do you have to hide it? By society's current standards, being white and racist is bad, so white racists tend to hide their racism more. Being black and racist is okay, and "understandable" because history, blah, blah, blah. So black racists can be far more overt in their racism. Society justifies their hatred. So it's not a matter who is "more" racist, just one race is allowed to show their racial hatred more overtly.
And none of this should be acceptable behavior, but it happens. Just look around and you'll see it.