There is already an enormous oversupply of art. The struggling artists' real product is something rarer: authenticity. If they did not struggle then they would not be able to produce it.
This is an interesting take, but most of my favorite artists grew up comfortably middle class, because it gave them the time and space to develop their art, compared to people who had to get jobs as teens or watch their little siblings.
You've got the causality backwards. Authenticity means steering clear of the siren call of mass market appeal. An overwhelming focus on creating things, despite their lack of commercial expedience, is what causes the struggling.
The analog in software is working for a surveillance company versus architecting your software to cut out needless middlemen.