You can say the n word as much as you want, no one is stopping you. It's not even against the law.
However, if you say it once or many times and get caught, you, as a white person, are going to be judged and held accountable by society in ways a black person is not.
I'm fine with that because I never plan on using the word in private or public and don't begrudge people who can without repercussion.
I'm sorry it upsets you so much.
Hey, did you know many Jewish comedians openly use extremely negative stereotypes about themselves without repercussion?
But when Mel Gibson says something derogatory, Liberal media start your engines!
That doesn't bother me either, and for some weird reason I don't see many other people complaining about it.
I wonder what the difference is?