AI have no rights. Your AI creations are right-less. They belong in the public domain. If not, they are properties of the peoples whose art you stole to make the AI.
You are asking a fundamentally different question than I am. I am not asking 'Is it art?', I am asking 'Is it copyrightable?'.
It could be art, but that doesn't mean it's copyrightable. You are all over the map with you analysis, drawing comparisons and JAQing off out of smoke and spite. It's not about the exploitation, it is about the process of creation. The process for making hexadecimal colors and mixing paint colors are likely both patented processes within their fields, if sold as a product (and to be sure, this is not only likely it is certain). That said, the end product of said creation (painted wall) could or could not be copy written. That said, if you happen to create Feldspar BlueTM through a completely different process then it is not the same product or patent. This is exact same process as the polygon tool.
This is where the differences appear. An LIM assisted image cannot exist without previously existing artistic material, copywritten or not. And despite this, the only part of the 'patented' process that is allowed is the LIM process itself, not the creation of the original artwork, even though it is 'essential' to the process, in a way that just painting it from memory is not (because of possibilities of convergent design).
This is a fundamental disconnect in the logic here. It is more like being able to directly plagiarize someone's data without attribution, even if you come to a different conclusion than them. I would even be more fine with this process if the scrapings that the LIM uses have to attributed to the original creators in the data. As it is now, the process as it exists constitutes copyright piracy.