We give copyright for much less.

I find this an interesting point. My understanding is that AI art just isn't considered enough work on the part of the human creator, presumably because of the idea that you only need to come up with a prompt.

But at the same time, most photographs and videos are copyrightable even if you literally just pointed your phone at whatever without any talent at all. IIRC, the idea of photographs being copyrighted was originally a controversial one, but these days is generally accepted. As long as a human took the photo (and not, say, a monkey, as a famous case found).

Is pointing a phone and clicking a button more of a human contribution than coming up with a prompt? What about if they had to iteratively tune the prompt and mask out parts of the image? In my book, I'd say that's more human contribution than many photographs.