Non-Aboriginals simply came over to the New World, committed genocide, confined them to reservations, and took away their children in a failed attempt to "eradicate the Indian in them."
That's pretty much right, but to be fair, while there was some violence against aboriginals in Canada for sure, most aboriginals died inadvertently from diseases brought over by Europeans rather than violence, and it's estimated that the population of aboriginals in Canada right now is about the same or higher as just before Europeans arrived.