The ability and willingness to generate images in a style associated with a person, without consent, is a threat to that persons job security and shows a lack of value for them as a human. As if their creative expression is worth nothing but as a commodity to be consumed.
You can’t own an art style. Copyright only extends to discrete works and characters. If I pay a street artist to draw a portrait of me in the style of Picasso, I’m not devaluing Picasso as a person.
The same thing except you then have to pay for the disk, distribution and worry about stock and so on.