The only exception I know of, for which there is some regulation where they can't just say "no", legally, are banks. And trust me, if banks don't want you as a customer they will do everything in their power to maliciously comply to the point your account is useless and perma frozen.
What is this lunacy about Google regulation about? If Google doesn't want Enderman, you can't force them to have him.
I get what you really mean is regulating so companies are forced to process and communicate via non-automated, non-AI systems for whatever a, b, c issue or reason, but this doesn't change anything because of how simple and cheap is malicious compliance.
All Google needs to do is "yeah, okay, we'll also review it with human", and put some intern to press a green button manually.
Unless you can prove discrimination, it's their house, it's their business, they can and should do what they want.
The issue is that Youtube is one of the strongest and hardest to break monopolies on the internet. It's the hardest part of the degoogling process.
If digikey decides they don't want to do business with me, I am not suddenly unable to buy from 30% of the world's manufacturers, unable to sell to 70% of my customers and locked out of my manufacturing line's plc.
If Safeway decides to decline my business, I am not locked out of eating bread from anyone who buys their flour from them.
If Cocacola doesn't want to renew our contract because I mentioned to my customers that we also stock Pepsi, I can still buy Cocacola from the wholesaler and resell it, and regardless I don't lose access to my accountant and mailbox when they terminate that relationship.
That I agree 100%.
But Youtube really did nothing to become or preserve its monopoly really. It's really a reinforcing most creators -> most users -> most money -> most creators -> most users.