I myself DO NOT CARE if you hate me because of my race and would like to ship me off to Mars or sell me to a "Negro plantation." Furthermore, I don't even give a flying Jesus H. Christ, if you want to post it on this site....
... Just POST THAT FILTH in either the FZ or race relations ... where decent people don't have to listen to your Hitler worship and constant whining about how something isn't YOUR fault.
That kind of stupidity is going to ruin this site.
That is all....
Unfortunately, to have free speech we have to tolerate speech that makes us wanna do...ooh terrible things to people.

Racist speech is protected speech. And a legitimate means of expressing your ideas. Long as it doesn't break site-rules I'd imagine they're gonna say put such users on ignore.
As somoene fairly well aquainted with unpleasant speech from others I may occasionally put such people on ignore, report rule infractions, and stick pins in the little voodoo dolls of them I make (kidding, but only just,) I nonetheless defend their right to say stupid uninformed things. And wouldn't dream of restricting it long as it isn't breaking site-rules we all abide by.
Can't let stupid hateful people bring ya down. First, there's more of them than there are us. Second, I think many of them are just so profoundly lonely they'll say anything no matter how outrageous just for some attention not having the mind to express a legitimate thought that'd garner as much.
But as Dr. King said best,
"Returning hate for hate multiplies hate, adding deeper darkness to a night already devoid of stars. Darkness cannot drive out darkness; only light can do that. Hate cannot drive out hate; only love can do that. Hate multiplies hate, violence multiplies violence, and toughness multiplies toughness in a descending spiral of destruction."