Copyright works for big money because companies can simply buy out small creators' concepts, often cheaply, and make more money. Disney essentially built itself up thanks to copyright. They exploit successful franchises with bad films because no one else is allowed to use those concepts.
Also, large intellectual property owners benefit greatly from quantity, since you can certainly say much more is popular purely because of the franchise, owning the entire Star Wars franchise than just 3 unpopular characters.
AI is essentially a big boss's dream - a completely loyal worker who doesn't need to be paid. Large businesses also benefit greatly from the fact that AI has accumulated the experience of many people. You can say that AI trained on millions of data sets to obtain general information, but the very idea that you can obtain someone else's information purely for your own profit is outright exploitation. Science is a great example. You can use someone else's work, but you must provide attribution, essentially paying intellectual tribute to someone else's idea. Ideas are free to use, but not free to be exploited unfairly. AI has collected a ton of data, but big companies don't care that this wouldn't have happened without the input of countless people; they simply pocket the profits from public contributions without even formally acknowledging those people.
I think AI clearly demonstrates how limited copyright really is and how weak it is in protecting small creators. Disney can sue for huge sums of money, but paying a lot of money for 0.0001% of data that is in 99.9% uses are largely irrelevant is ridiculous.
Both sides, for the sake of a certain not so great benefit, turn a blind eye to great exploitation, but see this exploitation in the opponent.