I get a kick out of the ignorant common false consensus that none of these same atrocities ever happened in the old world. For every “savage” native American atrocity, I can source to an equal and like kind atrocity or practice by the “civilized” cultures in the old world. Should the Spartan destruction of newborns be the stereotypical example for all cultures in the old world? Of course not, neither should one or two cultures in the new world be the universal stereotypical example for all the new world tribes. It would be like stereotyping “all” white men as bad just because one or two white men committed a crime.
http://internetbiblecollege.net/Lessons/Killing%20Newborns%20In%20Ancient%20Greece%20And%20Rome.htm