When will the indigenous Basquiat emerge?

One aspect of visiting Stratford involves walking the streets.  The touristic area is a clean, well lighted place, populated with the accoutrement of the upper income quintile--unique restaurants, artisanal products, spas, art.  One of these shops purveys indigenous art.  The front part contains all sorts of lower-cost knickknacks like magnets, journals, coasters, etc.  All of these with some indigenous thematic attached.  The back contains the pricier art and sculpture produced by authentic indigenous people.  This is where things get interesting.

Who decides what type of art or sculpture gets produced?  It’s a bit of a chicken and egg problem.  The thousands of dollars in cost means that this is not material which the indigenous people themselves will be displaying in their own homes.  Indeed, part of the point of these purchases is to help support these poorer people.  (Similar problems exist in many poorer countries e.g. coffee exports from parts of Africa are for the richer countries that can afford the export, not the people of the country itself.)  I can only imagine some kind of artistic middlemen who think about what richer people would be willing to display or purchase, and then explain to indigenous people who have some kinds of technical skill what they need to make.  

What does get produced are stone sculptures of arctic animals, paintings of arctic scenes, and the like.  In short, some facsimile of folk art, but not genuine folk art, because folk art is what folks would produce irrespective of capitalist intervention.  

What doesn’t get produced by indigenous artists is any sort of art with a modern impulse, like abstract expressionism, impressionism, concept art, etc.  I suppose that what is required before ‘modern art’ can be regarded as legitimate artistic product is some integration into the modernist art community.  ‘Minority’ artists of various ethnic identities have made this leap, even as they often find it profitable to make the subject of their identity part of their artistic project.  When will our indigenous Basquiat emerge?