No, customers aren't saying that. Customers are just saying that the final packaged, delivered product they receive (today a better description would be the overall service channel through which they receive the products) is worth what they pay for it. They aren't paying the various contributors separately so their payments say nothing about how much they think those individual contributions are worth.
Nobody is offering them the unpackaged raw product, at least not for creators that work through the big media companies, so it's impossible to know whether they would pay for it if it were offered by the big media companies, and if so, how much they would pay. Some creators do sell direct to customers over the Internet, or make a living through Patreon contributions or something similar, so the package the big media companies are selling is not the only thing customers are buying.
However, it's certainly true that the big media companies do have advantages that they are making full use of. As I said in my original post in this subthread, the only way for creators who don't like the small cut they are getting from the big media companies and want more of the profit for themselves is to do their own distribution instead of doing it through the big media companies. Some are doing that, as I said above, but not many.
It isn't. The market says it's worth a lot. But the vast majority of that "a lot" doesn't go to the actual creators. It goes to middlemen.
Unfortunately, the only fix for that, from the creators' point of view, is for them to own the middlemen themselves. But creators generally have neither the time nor the desire to do that, and doing it detracts from their ability to create.