Who's forcing Facebook to engage in censorship in the first place? Why don't they just go on about the business of making money? They are immune from defamation/libel/slander so where's the issue?
They are not immune from boycotts like the one they are currently facing. That's why they are censoring certain types of content, because their advertisers don't want to be associated with it.
Absolutely. Also user base outrage. At some point if enough people quit FB it would be a problem because advertisers need an audience. So far the numbers show it hasn’t happened despite all the posts on hacker news about it, but it’s a concern.