You are a absolut genious. You say that it was just “recently” used as a slur and before then a “normal” description. Well have you thought about the fact that when it was used, our society looked at böack people as inferrior, wilds or animals? Hell there were different indigenouss people in fucking zoos up to the 1940-50. Really weird that one would think that the totally neutral word to desscribe black people by others who think they are animals is maybe not that neutral. You propably are one of those people who think there is no language or context in language.

Lol maybe read the wikipedia article about it if you didnt know what the kontext of the word was and how it was used?

If the bearing is gone, that wont make it better. Best way would be dissasembly and then turning it to feel if it is bad.