The Nazi's got the term, and concept, 'final solution' from a Canadian:

"It is readily acknowledged that Indian children lose their natural resistance to illness by habitating so closely in these schools, and that they die at a much higher rate than in their villages. But this alone does not justify a change in the policy of this Department, which is being geared towards the final solution of our Indian Problem."

"…the system was open to criticism. Insufficient care was exercised in the admission of children to the schools. The well-known predisposition of Indians to tuberculosis resulted in a very large percentage of deaths among the pupils. They were housed in buildings not carefully designed for school purposes, and these buildings became infected and dangerous to the inmates. It is quite within the mark to say that fifty per cent of the children who passed through these schools did not live to benefit from the education which they had received therein."

(This is why there was a fair bit of anger in Canada when Civ 6 added Wilfred Laurier as Canada's leader.

EDIT: I transposed Laurier and MacDonald here, as someone pointed out. The above quotes are from Duncan Campbell Scott, as Deputy Superintendent General of Indian Affairs under MacDonald. Laurier was a key architect of the Residential School system. TLDR; MacDonald started the genocide, Laurier built upon it.)