Ah, I see. Well, I am not sure one can understate an attrition rate of 80% by the most conservative mean, and 95% for a higher range!
As well, I feel the North American Indigene are still widely marginalized within popular culture, and their entire sense of entitlement is openly trivialized. You will never see a professional sports team named "The N******", or see plastic figurines of an African-slave in chains being sold on the side of the highway. Both cultures suffered irreparable harm but, at least in my opinion, the harm is still being trivialized in respects to the North American indigenous population.
For example, the Canadian Historical Society often runs advertisements lauding Canada as a nation of two founding countries: England, and France. Somewhere within that marketing room they must have been experiencing a massive bout of cognitive dissonance in not recognizing there were inhabitants of Canada prior to the French/English!