just repeating the same mistake as op: sadness/happiness is completely outside the scope here. these are aspects of a job - "design" explicitly relates to products not art. and wondering about the sadness/happiness of a job is like wondering about the marketability of a piece of art - it's completely besides the point!
1. Good design is innovative 2. Good design makes a product useful 3. Good design is aesthetic 4. Good design makes a product understandable 5. Good design is unobtrusive 6. Good design is honest 7. Good design is long-lasting 8. Good design is thorough down to the last detail 9. Good design is environmentally friendly 10. Good design is as little design as possible
Generative AI just tries to predict based on its training data.
a product can be a piece of art and design can and does in practice often go hand in had with art, practically most designers also other than the utilitarian role practice the artistic one, wether you would want to group art within design as one is a matter of definitions