The lack of empathy is incredibly depressing...
Jobs have been automated since the industrial revolution, but this usually takes the form of someone inventing a widget that makes human labor unnecessary. From a worker's perspective, the automation is coming from "the outside". What's novel with AI models is that the workers' own work is used to create the thing that replaces them. It's one thing to be automated away, it's another to have your own work used against you like this, and I'm sure it feels extra-shitty as a result.
The whole point of art is human expression. The idea that artists can be "automated away" is just sad and disgusting and the amount of people who want art but don't want to pay the artist is astounding.
Why are we so eager to rid ourselves of what makes us human to save a buck? This isn't innovation, its self destruction.
Art-as-human-expression isn't going anywhere because it's intrinsically motivated. It's what people do because they love doing it. Just like people still do woodworking even though it's cheaper to buy a chair from Walmart, people will still paint and draw.
What is going to go away is design work for low-end advertising agencies or for publishers of cheap novels or any of the other dozens of jobs that were never bastions of human creativity to begin with.
There are a lot of working commercial artists in between the fine art world and the "cheap novels and low-end advertising agencies" you dismiss, and there's no reason to think AI art won't eat a lot of their employment.
I don't pay someone to run calculations for me, either, also a difficult and sometimes creative process. I use a computer. And when the computer can't, then I either employ my creativity, or hire a creative.