> "But it's private companies! They can do whatever they want!" The telephone companies are private. Do they have a right to kill your connection when you talk about unapproved subject matter? Twitter, Youtube, Facebook, and so on are the modern de-facto means of communicating long distance and to wide-spread audiences.
If I started robo-calling millions of people with unapproved subject matter, I'd wager they'd kill my connection fairly quickly.