> How is that called?
It's called business, and unfortunately you have no path of recourse. When someone gives you something for free, they are not compelled to keep providing it freely. That's how American regulation works, and those are the rules YouTube plays by.
It stinks, but it's a good lesson to not trust other people with information you value.
Well, it just shows what monster the service and the monopoly behind that started with a "Don't be evil" policy has become over the years.