Earlier quoted context omitted.
If you're locked in a kitchen, even though there is more than one choice of food are you free to decide what to eat? What if you was born there and don't really know all variety options you could have? Centralized propaganda makes "freedom of choice" very controversial topic. Especially when its source has all the power to censor and prosecute.
This article by Google's design ethicist shows how even in a free market world we end up with false freedoms. For example, if Facebook suggests posts from your friends, how do you know you have control of who you become friends with and interact with? How does Netflix's suggestions influence what movies you know about. He shows that even in our free world we're still influenced by propaganda that makes us have a fals…
Yes, freedom always has restrictions, everywhere. But it does not always smell so suspicious. Facebook making some choices for you and Facebook being blocked completely for making it too easy to read unapproved opinions are very different levels of the problem.