The moat for artists hasn't actually gone down though. Even for those in Patreon with their styles directly trained are raking the same subscribers they have.
What does 'even' here mean? Patreon artists are doing fine because they're more like influencers. Artists looking for jobs in the industry (especially graphic design, but also film and game) are the ones who are in trouble.
Canva destroyed graphic design well before LLMs caught up, but UX is still (somewhat surprisingly) on the ropes.
My bet: front end devs who need mocks to build something that looks nice get crowded out by UX designers with taste as code generation moves further into "good enough" territory.
Then those designers get crowded out as taste generation moves into "good enough" territory.