White people who insist that they should be able to use the n-word, too, have gotten it wrong. The analogous term to the n-word being used by black people is cracker being used by white people. To be completely fair and equal, they are welcome to use cracker any time they want.
White privilege means that white needs, wants, and sensitivities are all assumed. Non-whites know how to act white. White people only know how to act white. White people need to end racism. We can make a down payment on that by relinquishing any and all claims to the n-word.