Not to say that the service they provide isn't useful. It's obviously more economical to operate media platforms at scale, and obviously most content creators don't have the technical ability to do it themselves.
When you look at say, podcasts for instance, you have this giant shared wealth of free content and you can pick a number of creators to support depending on your budget. You usually get extra episodes or perks as an incentive for doing so. Imagine if, instead of paying YouTube X dollars or watching Y ads and letting them choose out how to spread that money around, you pay the people you actually watch and the platform vendors, who ought to be the least important and most replaceable factor in this transaction, gets the cut they actually deserve.
Before they were ruined by copyright trolls, streaming services like Netflix demonstrated that charging everyone a reasonable amount of money for access to the entire park was a viable business model.