I'm having trouble coming up with a meaning for "non-artificial market". Do you mean a market free of all forms of non-participant manipulation, coercion, information-assymetries, etc.? I don't think we make those on this planet.
Right, I get it, there's no perfect/elegant/ideal/Platonic market anywhere.
But if you really can't tell the difference between "people use car dealerships because they all find them more convenient" vs "people use car dealerships because of a law that says they have to buy this way", then you're generalizing too far from the above point.