This is the same argument we made in the 90s about what the web was going to do. What ended up happening was the growth of aggregators and silos like Facebook that baited everyone with ease of use into putting everything into their walled garden and then monetized it. The creators, namely the posters of the content, got nothing.

The same is happening already with AI creations. Doing it yourself is work and takes some technical skill, so most people use hosted AI services. Guess who makes all the money?

You will be able to create and share your own spin on Star Wars. You won’t see anything for that except maybe cred or some upvotes. The company that hosts it and provides the gateway and controls the algorithms that show it to people will get everything.

To be fair, people who post on Facebook get exactly what they were promised. Users of free products generally don't expect a rev share.