Miss Ann, since we bipedal primates discovered stick tool to catch termites we have used tools to make life mostly better.  We use fossil fuels to harness former Plains Indian lands from Texas to northern Canada.  Without corn, wheat, beans ,etc. from the "sacred Great Plains", "sacred water" from the aquifers and rivers, including Corp of Engineers dam project, BILLIONS of people around the world would starve. Yes, perhaps, a few could go back to subsistence buffalo hunting, but I suspect most would not. Oil and land development makes the world a livable place for the majority including Native Americans.