> non-artists to use other people's skills instead
Here is where I think you're wrong: Everyone is a potential artist.
Many never have the opportunity because of economic reasons: some people don't have the time to cultivate the mechanical skills necessary to render their vision.
All artists pull from the work of others constantly. That is 'using other people's skills'. It is absolutely privileged to have the opportunity to devote time cultivating art production skills (which is usually done by studying and replicating the process of the artists that came before them).
If someone is born to a single mother, grows up having to raise their siblings, then has to immediately start working to help support their family, they don't have the privilege or time to explore art production skills. Technology has been making art production more accessible for hundreds of years, and that's a clear net good. I want everyone to be able to make art if they want to.
It up to the artist if they want to manifest their vision without creating the pigments and brushes themselves, or using a drawing tablet, or using generative AI tools - it all can be art that is meaningful to the person who creates it and more art in the world is a good thing.
Commercial art isn't a very good representation of the artists soul: they are constrained by market forces or their patron rather than producing what their own heart desires. We should all be happy to sacrifice commercial art jobs if it means that every person in the world gains the ability to render the art that comes from their soul.