"many FN people have voted with their feet....a majority of Status Indians now live off Reserve...."

And in a handful more generations, this "voting with their feet" will likely and hopefully decisively end the self-segregation as young people realize that the world is a vast and wonderous place. Thankfully, there has been such a massive focus on preserving their culture that they will be able to choose whether to forego it or not.  All in due time.