The first two paragraphs of your argument could be used to discuss whether Photography (Camera is doing most of the work) or Digital Drawing (Photoshop is doing

The first two paragraphs of your argument could be used to discuss whether Photography (Camera is doing most of the work) or Digital Drawing (Photoshop is doing most of the work) are art. The work a camera does is capturing the image in front of the photographer. "Art" in the context of photography is the choice of what in the image should be in focus, the angle of the shot, the lighting. The camera just captures that; it doesn't create anything that isn't already there. So, not even remotely the same thing as AI Gen. The work of Krita/Inkscape/etc (and technically even Photoshop) is to convert the artistic strokes into a digital version of how those strokes would appear if painted on a real medium using a real tool. It doesn't create anything that the artist isn't deliberately creating. So, not even remotely the same thing as AI Gen. AI Gen, as demonstrated in the linked page and in the tool comparison, is doing all of the work of generating the image. The only work a human does is to select which of the generated images they like the best, which is not a creative act.