Not hung up at all.  A word is acceptable to use or not.  A taboo word is not to be used by anyone regardless of skin color, ethnic origin, or religion and should eventually disappear from usage.  A word that is allowed to be used by one group but not another perpetuates its use, is hypocrisy, and a mild form of racism.  At some point in the future, let's hope we are all one race, the human race and our posterity will sit in classrooms with their mouths agape, unable to comprehend what the issue was even about.  But until then, the US Congress needs to codify when the word can and can't be used.  That should keep them busy doing something real for a while and lawyers will have a new issue for civil suits.