I also know several selling artists. Their stuff is pure garbage. If you, like me, talk about beauty in art you will get eye-rolls and someone will say the word "Bush" within the minute.
Way back when I was young, I was accepted to the Chicago ARt Institute, but money/family restrictions kept me from going.
I remember one painting then, about 6'x 5', a canvas divided in half, on a diagonal, with one half all white, the other all yellow. The price tag was $5,000 (in the 50's) and the title was "Untitled # 16". Even the artist didn't know what it was - ;o)
As a representative (primarily portrait) artist, I was out of the mainstream - and I could never learn to paint bad enough to be 'in'.
I was fortunate to live for some years in the Berkshires and had some top nationally known artists to study under = with contact and invaluable critiquing from such as Norman Rockwell, Norman Kent and Robert Brackman.
We used to show in local shows, but our watchword was " If one of your paintings wins a prize, you need to study what's wrong with it!" ;o) We showed simply for the public exposure.
One year in particular, I remember, the first prize went to a purple mess titled "Purple Spaghetti" - now how do you compete with that? ;o)