So on how many occasions have you been insulted because of your race?
How many times has someone called you a derogatory name to your face because of who and what you are?
In what way has something that you have absolutely no control over effected other peoples view of you, despite the fact that they don't know you and have no idea whatsoever what type of person you are?
By the way, I'm white and have heard some right racist shit in my time and have called it out on numerious occasions, know what? In my experience most racists are a bunch of cowards who when challenged face to face start to backtrack and try to wiggle out of it.
The rule is simple, if you're not prepared to say it to the face of someone who's physically able to take you on then STFU.