How does adding a link prevent anyone, let alone the most powerful person in history, from communicating?

> People have a right to communicate, if a few platforms have the power to block all communication maybe they should be.

Hm.... I don't see how Twitter is preventing anyone from the right to communicate, nor do I sense that Twitter has the power, even if it worked with the next 3 largest social media platforms, to "block all communications." Last I checked, the internet would still exist if Twitter, Facebook, and Linkedin shut down.

So, some kind of socialized national communication place?