The "N" word

I not a person that gets offended at much, not even when some of my friends like to constantly use the word Nigga. I just don't seem to understand why someone would want to call someone that. We all know that it was use to belittle the blacks dating back to the 17th century but now that someone decided to take off the ER and add an A its ok. Well I have decided its not. I don't want anyone calling me Nigga, not a single friend, not even in fun and games. I don't care if you are white or black, the word is ignorant and I think that it needs to be avoided.