A mixedblood friend wrote several novels from the point of view of tribal people here in the US. In one he had the Southwestern reservation residents concocting a scheme to move back into some of the historic dwellings, in costume, and charge a lot of money admittance to the white tourists who wanted to see the Indians in their natural habitat. That way they could all put the latest appliances in their nearby modern homes and simply take turns doing their costumed stint at the historic village.

Native/aboriginal people aren't museum pieces. Colonization changed each continent and we all live in the the twenty-first century. Proving a link to art 27,000 years old requires DNA, not simply a few pots of yellow paint stored out in the garage.