On the Fact that the Comanche Indians Perpetrated a Brutal and Systematic Ethnic Cleansing of the Neighboring Apache Tribe and Almost Wiped Them Off the Map Permanently - http://www.dailymail.co.uk/news/article-2396760/How-Comanche-Indians-butchered-babies-roasted-enemies-alive.html

And they tried to do that to the whites and Mexicans, too. Just didn't have the manpower.......So much for the noble savage.