To understand how the Metis can be 100% aboriginal:
Section 35 of the Constitution Act, 1982 relates to the rights of Aboriginal Peoples of Canada. It states:
35. (1) The existing aboriginal and treaty rights of the aboriginal peoples of Canada are hereby recognized and affirmed.
(2) In this Act, "aboriginal peoples of Canada" includes Indian, Inuit and Metis peoples of Canada. (my emphasis)
(3) For greater certainty, in subsection (1), "treaty rights" includes rights that now exist by way of land claims agreements or may be so acquired.
(4) Notwithstanding any other provision of this Act, the aboriginal and treaty rights referred to in subsection (1) are guaranteed equally to male and female persons.
Ah, yes the constitution, brought to us by the racist, socialist, communist ####stain TRUDEAU. There in lies the problem. You are quoting one of the most racist documents in the free world.