If you want the freedom to not be censored. Make it a point to allow ALL communication and ideas to flow over the network.
Facebook, Twitter, YouTube have the right to allow or disallow content that they see fit, as do TV networks, News Papers and any privately owned company. If you'd like to change that, there are two ways, one is regulation and legislation which is outside of the scope of NN, and competition, which is only possible if NN exists in a robust form.