Hell, I used to make handmade jewelry boxes from exotic woods. Once I realized what I would have to sell them for to get any realistic value on my time, thoughts of making that my fulltime job went flying out the window. Instead it was more fun just giving them to friends and family.
The vast majority of art usually isn't profitable. There are only so many people, families, businesses and organizations that will commission portraits, sculptures, lavish architecture etc. Look at how many graphic designers there are who have to essentially do free work just to get considered for hire so they can do a campaign to sell laundry detergent.
> With all these menial jobs taken up, maybe even more people will turn to custom crafts and trades. Where what I'm paying for is the creativity and uniqueness of the objects I'm buying.
There's etsy where artists and stay at home moms try to tap in the craft and 'artisanal' product market. There are many people trying to do just that.
Anything that people likes to do tended to be oversupplied.
In a world with no demand for labor, there is an implication that the cost of goods would be dominated only by supply scarcity. For commodity goods, they would essentially be free.
200 years ago a real shirt would cost you ~$2000 in today's currency (land -> sheep -> farmers -> spinsters -> dyers -> weavers -> tailors). Now a decent shirt costs $40.
Eventually artsists won't starve, even with minimal income. Ideally, hopefully.