jerrek my point is this from your own post:
I agree with b here. Nig-ger has a non-negative definition too, as produced by Merriam Webster:
Main Entry: nig·ger
Pronunciation: 'ni-g&r
Function: noun
Etymology: alteration of earlier neger, from Middle French negre, from Spanish or Portuguese negro, from negro black, from Latin niger
Date: 1700
1 usually offensive, see usage paragraph below : a black person
2 usually offensive, see usage paragraph below : a member of any dark-skinned race
3 : a member of a socially disadvantaged class of persons <it's time for somebody to lead all of America's niggers... all the people who feel left out of the political process -- Ron Dellums>
usage ****** in senses 1 and 2 can be found in the works of such writers of the past as Joseph Conrad, Mark Twain, and Charles Dickens, but it now ranks as perhaps the most offensive and inflammatory racial slur in English. Its use by and among blacks is not always intended or taken as offensive, but, except in sense 3, it is otherwise a word expressive of racial hatred and bigotry.
As shown by your own example it is only used for 1 thing a word expressive of racial hatred and bigotry. and untill i can be proved wrong it will stay on the list.