Very true.

Canada has their own native people:

http://en.wikipedia.org/wiki/First_Nations

And everyone knows how the aborigines fared under the White Australians, as if bringing in illnesses to which they were not used to was bad enough, they sought to breed the "half castes", aborigines with one white parent and one aboriginal parent out of existence.

http://en.wikipedia.org/wiki/Rabbit-Proof_Fence_%28film%29

Not really fair to point the finger solely at the USA for this one. And Britain had it's hand to play in the formation of the USA, if it wasn't for those old white guys shooting witches (ie, each other!!!), then the natives were fair game for being next in line.