Do you know one, just one, family who lives a traditionally native subsistence lifestyle? No alcohol, no cigarettes, hunts and fishes the traditional way?  I don't think so.  Ethnically mixed means many have different traditions and cultures.  Most have ancestors who never lived a subsistence or even semi subsistence lifestyle in the near past so why do many claim they do.   Like anywhere USA they have Asian, African, European ect ancestors. Can we be selective and only claim the one that you get the most benefits from? If the native store does not have what you want you can order it today. It is more expensive as it should be when you choose to live far from amenities. The growing of ones food and raising livestock is the epitome of real subsistence living.  This has helped so many cultures to progress to where they are at today. America would not be were it is at if we had to buy or trade for all our food.  Even cave men progressed from the help farming to supplement their diet.