Red-Men sounds like an ethnic slur, regardless of what its original intent was.
All of the above have caused some amount of controversy, and I can understand the reasons why.
-k
Really, the only people who don't see the problem are those who attempt to eliminate the historical context of the names and the subsequent connotation that has built around those historical contexts. It's very easy to not be aware of or sensitive to those issues when you're not the target of the abuse that came along with them.