not that i agree that other races should be using it and not whites, but i will give a reason why whites specifically shouldnt.
more or less, because theyre the ones that made it a negative term, built around one specific race. theres documented history in books, video, audio files, all of that where the word is used in a hateful way, at one specific race, by one specific race.
but yeah i dont think anyone should use the word really..for me its just a habit ive yet to break..and some people are gonna say it just to try and look cool...as in the case of asians in the bay (not to hate but its the truth)