The fact of the matter is that most of the whiners would've been shitting themselves and begging for those evil white men they hate to save them had they lived on the American frontier. A lot of the Indians made ISIS look like pikers by comparison. If you're interested in the subject of the Indian Wars you should pick up Scalp Dance: Indian Warfare on the High Plains, 1865 - 1879 for a more balanced view.
"Men willingly believe what they wish." - Julius Caesar, De Bello Gallico, Book III, Ch. 18