To call what happened in to aboriginal people in North America "genocide" disrespects all those who were victims of real genocidal actions. It also gives the arguments of those that use the term, reduced credibility. What has happened to the aboriginal population in Canada is unconscionable. It was not, however, genocidal.
The real question is what to do now.
It was cultural genocide and in some cases a massacre (the Beothuks). to call it anything less would be to belittle a culture and a people