Sorry, but I'm going to have to pick on you a bit because this notion that art is only art if it is marketable is nonsense. There are entire art movements that are specifically anti-commercial or anti-aesthetic, etc. Dadaism, for example, was intended to confuse, infuriate, and offend the viewer. Here's a link to
Hugo Ball's 1916 Dada manifesto and another link to
Tristan Tzara's 1918 Dada manifesto. Here's probably the most famous Dadaist artwork, entitled "Fountain", by Marcel Duchamp. It's a urinal that Duchamp bought in a store, signed with the pen name R. Mutt, and entered in an art show. Its copies (the original no longer exists) are worth big bucks now, but it was outright rejected from the art show that Duchamp tried to enter it in, even though the show had been advertised as being open to accepting
any artwork from anyone.
Nobody's going to spend any money on Paul McCarthy's NSFW "Tree"
sculpture in Paris either. Still art though. Maybe not
good art, but art nonetheless. You probably won't
like the art, but I don't think there are too many people who would be totally ambivalent to it, having no reaction at all.
Another example of an artist that had no relation whatsoever to the art market that comes to mind is photographer Vivian Maier. She didn't intentionally sell
her work or even show it to others during her lifetime. The photos were sold only because she failed to pay the rent for the storage unit where they were kept, shortly before she died. After her death, the people who'd bought the contents of the storage locker recognized what they had, promoted it, and her work became famous. Does that mean she wasn't an artist when she was alive simply because she never showed other people her work or sold any photos?
The quintessential examples though are the
Lascaux cave paintings (and other neolithic works). Vibrant, amazing works, yet no market potential because there was no such thing as an art market when they were made.
If you make art, you're an artist. And art is art, regardless of whether or not it has any monetary value.