Of course Facebook has a choice. It may cost them some money, but refusing to collaborate with totalitarian governments is an option. Look at Google versus China. Google had the courage to resist Chinese censorship and I really respect them for that.
Lets not forget that Google complied with Chinese censorship requests until China hacked them. As long as only minorities are the victim then these Internet giants don't give a damn. So now we just wait until Russia bans Facebook for other reasons and watch Facebook collect goodwill when they turn around and start to "stand up against censorship".
Let's also not forget that China hacked Google's portal for the federal intelligence to understand what surveillance operations were being done against their country.
Russia may ultimately ban Facebook for similar reasons. China eventually decided that it wouldn't deal with the US's weaponization of large web corporations - this may eventually be the end state of all the large powers.
