You are correct. Dont get me wrong I dont want to use the word, or for anyone else to use it. Its a slur and it should go away. Problem is the monkey see monkey do nature of humans. Also, I'm from Europe and there's two things I have in mind when I say that they do a disservice by using it among themselves, but getting angry when others use it.
1) Theres really not a lot of blacks here, the farther to east the less. So aside from obviously bad people no one has a grudge or instilled racism towards blacks. But people see black movies, listen to black music, hell most people even played GTA san andreas. And they all feature the use of the word, but almost none feature the backlash when used in the context of a white person using it. So, even if we do understand that it is a slur, we are not completely dumb, we will still take its application lightly, like quoting the everpresent "my nigga" image macro.
2) Every nation has a slur for any other neighboring nation here, no one is exempt. And yes, some of us were in vassal, or even slave state relationships with other nations. And we all know the slurs used against us from those times. And no one in their right mind would use any of those terms as a form of fraternization. Not even to "take it back" like Ice Cube said. If they took it back, then they shouldn't get mad at non blacks using it. If they didn't or cant, then my advice is to stop using it altogether.
Although a thought occured to me while writing this. Having black people use it constantly, even more so than now, but never allowing others to do it would be a really powerful indicator of how anti racist the outsider is. If they dont cave in in front of perceived hypocrisy, then they are surely ok with black people in general.