That is the whole point.Its seems its only racist when whitey does it.Im reminded of Noam Chomsky when he was skewered by the Jewish community for protecting the rights of a racist to spew his vitriol.He was right of coarse,no matter how offensive it became and it took tremendous cahones to say so.He never said he agreed with what was said only that the creep had the right to say it.
In Canada we lack those basic rights of free speech and anyone parroting the supreme white thing...would likely find oneself before a judge.