I think looking at copyright in a vacuum is unhelpful because it’s only one part of the problem. IMO, the reason people are okay with piracy of name brand media but are not okay with OpenAI using human-created artwork is from the same logic of not liking companies and capitalism in general. People don’t like the fact that AI is extracting value from individual artists to make the rich even richer while not giving anything in return to the individual artists, in the same way we object to massive and extremely profitable media companies paying their artists peanuts. It’s also extremely hypocritical that the government and by extention “copyright” seems to care much more that OpenAI is using name brand media than it cares about OpenAI scraping the internet for independent artists’ work.
Something else to consider is that AI is also undermining copyleft licenses. We saw this in the GitHub Autopilot AI, a 100% proprietary product, but was trained on all of GitHub’s user-generated code, including GPL and other copyleft licensed code. The art equivalent would be CC-BY-SA licenses where derivatives have to also be creative commons.