I don't understand your point Pidgenere.

On one side you say the word is offensive and shouldn't be used by white people.
On the other side you say it's a privilege that only black people deserve.

Is it a bad word or is it a privileged word ? Or is it a privilege to be offensive amongst people that have the same skin color ? Or is it just not offensive anymore ?
Is it wise to keep using the word amongst black people if what black people want is everyone to forget about that offensive word ? Or is it not wiser to keep using it to the point it loses its original offensive meaning ?

Also, "black race" is an utterly stupid expression. There's no race, 2 black people living in the same area of the world can be genetically "more different" than one of those 2 black people compared to someone with another color from another part of the world. The concept of "race" doesn't apply for humans, what people call "human races" are biologically unexistent, we're all just homo sapiens.