While I was in the Philippines, I found out that the n-word was sometimes used there concerning blacks (including towards the local negritos), but I also found that the locals often didn’t realize that it was very offensive. With the exception of stories on their local news stations (which are as a matter of course angled for local consumption), Hollywood blockbuster movies, and our products they see on their stores’ shelves, most of them have little real exposure to American culture, much less the racism endemic therein. In their case (and, I suspect, in quite a few other nations where the native language is not English) it really is a matter of education.
But that doesn’t mean that racism doesn’t exist there (it does exist to varying extents in every nation and every culture). More pertinently, it doesn’t excuse America for spreading the use of that word, and for perpetuating racism. We white Americans bear the lion’s share of the blame for that.