I pay a very small fee for debrid and VPN servers that offer exactly the same server capacity with enormous bandwidth and virtually no downtime. Plenty of services exist that can do what Youtube does. Peertube is a fediverse youtube that is based on a P2P model that lessens those burdens significantly, and it will grow with its users.
The thing that makes youtube dominant is the same thing that makes other social media platforms dominant: users and creators.
They are squeezing those users and creators as much as they think they can without completely alienating them and forcing them to find a better alternative. Once they pass the tipping point and an exodus begins, history shows they will only worsen things and accelerate the process.
The thing about the game of “how much closer can I fly to the sun without losing everything?” is that they will inevitably lose. You can moralise all you want, the reality is that they are getting closer and closer to losing every day. When they get there, you can blame whoever you want, it won’t change anything.