Oh, and to stay on topic. A big part of my ancestry is Lakota Indian on my father's side. Redskin never bothered me or anyone on that side of the family that I was ever aware of.
There are lots of Native American HS sports teams that even call themselves so and so "redskins". Are they just ignorant politically incorrect people that need to be enlightened by the intellectual and socially astute white man? That seems a little more racist from my point of view, telling me I'm too ignorant to even know what should and shouldn't offend me.
I mean. Use some simple logic. Have you ever heard someone use redskin in a negative connotation? Have you ever done so yourself? How can it be a racial epithet if it's not even used as one in the common vernacular?
Lastly. Those that are comparing the word Redskin to the word American Inventor are, for lack of a better term, retarded. I don't see black people calling their teams the so and so American Inventors. The word encapsulates a host of negative ideas/thoughts, stupid, thug, punk, I could go on. What kind of imagery do you get with the word redskin? A football team or someone of native American background.
In summary, no one insults ANYONE today by calling them a redskin. So by definition it cannot be a racial epithet if it's not used as one.