Unless I've misread this but it seems according to a 2012 census, native Americans only make 1.2% of the US population.
USA QuickFacts from the US Census Bureau
I dont have a number, but not all NA's are opposing the redskins name.
I'm not sure what reservations really mean b/c it seems to be out of US legal jurisdiction- or at least they have certain rights to their areas, so....they aren't really apart of the US in my political view.
It really seems like just a couple hundred to a few thousand NA's in all of America could have an issue. Democracy protects us from the opinion of a few vs. millions.
I'm no longer concerned this debate gains momentum b/c it's not important.