These were the pure humans that lived with nature, not the evil white man that destroys nature.
Yep. You know, the kind that used to stampede entire herds of buffalo over a cliff; and others that completely clear-cut Easter Island.
Seriously, though -- God has made the earth so ingeniously that, if we practice sensible husbandry and cultivation, and clean up after ourselves, the environment actually improves. But if we rape the environment, the environment knows how to screw us back.