I figured there were more than one side to this story. I think I would agree with the native-Americans that she was not that important especially after the native-Americans were abused and killed all so the white people could advance through their territories. I have a feeling that if the native-Americans understood at that time what the white man would do to them maybe this country would have shaped in a much different way.
Yes, what happened to Native Americans was probably inevitable in that in human history the strong always take from the weak and Europe was just too populous and technologically advanced for Native Americans. Add to that the fact that native Americans were so scattered and tribal and one can see they were ripe to be conquered. The issue is the way we did this. We sure could have done this in a more humane way and learned quite a bit from them. By we I mean Europeans.
Although they were technologically behind Europe, socially they were way ahead of Europe. Women had rights in Native American society that Western women wouldn't gain here and in Europe until the early 20th century. They were also brave warriors. The Lakota were probably the greatest light cavalry of their time. Though they weren't these completely peaceful people didn't know warfare until we attacked them. Tribes had been attacking each other for centuries. But that is simply human nature.