Thats not racism. Thats self defense.
I realize you have an exceptional ability to rationalize but I'd be interested in knowing how you worked that one out.
In case you haven't been paying attention, what is going on in South Africa presently is a virtual repeat of the Mau Mau uprising in Kenya, circa 1950s. White farmers are being ambushed by mobs of Blacks and tortured, raped and murdered in the most fiendishly cruel ways imaginable. And for your information, while the White South Africans were cruel they never took things as far as some of the atrocities I've read and heard about.
Does your hatred of Whites extend to behaving in that way if the opportunity arose? If not, why not?