I think of the Indian wars as sort of a necessary evil if you want to build a powerful country. America wouldn't be the superpower it is today if it contained a balkanized mix of Indian tribal nations that had no interest in industrialization or modernization. It could probably have been done better and with less loss of life, but the tribes had to fall and make way for a modern country. It's sad what happened, but looking into the future we have a great country that wouldn't be the same if the west was not won.