Are you suggesting that genocide did not take place in North America? In terms of numbers killed the wiping out of the native Americans was easily comparable to the holocaust. That isn't controversial. Disease and murder wiped out the natives and likewise the same happened in Nazi concentration camps to those encarcerated. Most didn't die in gas chambers, hunger or illness got them first. The mass wiping out of a race is genocide and the fact is that invaders killed an awful lot of indigenous people.