AI art is a completely different animal, mostly because of the fact that the AI is replicating actual work, i.e. the strokes of a brush or other media. Though both are similarly artistic endeavors, writing != visual art. In visual art when done by an artist in the medium, they do a similar thing as we do in our written media, i.e. that's why you see movements like impressionism, cubism, etc. They get inspiration from the founder of that movement and build upon it to make something new.
AI doesn't do this. It samples and remixes in order to replicate, using the exact same style rather than an adaption. It's imitation, not inspiration. The closest example you could get to a human doing the same is tracing art and passing it off as their own with minor alterations. For writing, we have plagiarism, where you lift what someone says wholesale, and (maybe?) make minor alterations to try to obscure the theft.
Plagiarism and Tracing of Art is not and has never been acceptable. Inspiration and sharing with peers is the meat and bones of any creative endeavor.