If people can make sound independent judgment, we don't need a law constraining what private companies must allow on their services because private users will find the censorship reprehensible and will voluntarily leave. We need the First Amendment to constrain what government can do because people cannot voluntarily leave a government; the same is not true for their Facebook account.

And if people cannot make sound independent judgment, and their desire to fit in will make them give up all sorts of rights... How can we trust them with the freedom to say and hear unfiltered information? The first demagogue who comes along and convinces them they must do what he says or they don't fit in will have the whole user base in their power, right? In such a context, it is perhaps necessary to allow the media its freedom of the press to transmit what is true and refrain from transmitting what is false.