Good point.  But not all current Metis can claim to be half European and half aboriginal.  The first Metis were born in the mid-18th century, typically to a European father and an aboriginal mother.   That is about 10 generations ago.  How many of the current Metis would be able to trace all sides of their family trees back 10 generations to show that every one of those ancestors was a pure Metis? What if 75% of their ancestors were European - are they still Metis? Race-based policies and benefits inevitably lead to these questions, which should be anathema to any modern democratic state where all are supposedly equal.