Let's say you take your hello kitty dot art, and make a poster promoting a commercial event. You then take it to FedEx Kinkos and use a self-service copy machine to make 1000 copies. You could reasonable argue that you are violation of copyright infringement, and the photocopier / FedEx kinkos isn't.
Now instead, you have AI generate a poster, and it generates a very similar image to hello-kitty. It's arguably so similar than a reasonable person would say it's a copy. You take that poster and again make 1000 copies. Is there copyright infringement? If so, who if anyone, is liable for damages?