Please define "talented artist". Artist != someone who sells artworks. Selling art is something else than making art. You could argue that it is almost completely detached from making art.
If UBI makes 10% of the population "talented artists", what does that even mean? Who should consume all this art? Doesn't it make "art" much more common and thus, less valuable to society?
If UBI makes 10% of the population "talented artists", what does that even mean? Who should consume all this art? Doesn't it make "art" much more common and thus, less valuable to society?