No, it was merely an illustration that such moderation and interception of selected/prescribed material is entirely possible.
Nobody was suggesting it be state-run.
Perhaps “the great firewall of Facebook/Instagram/wherever” is a better description, especially as the rest of us could remain as happily outside it as we currently are, if we chose.
ETA Oops I composed this a while ago but had not hit ‘post’ until now (being distracted by some real-world nonsense needing my urgent attention) and now I see you’d already replied above. Apologies. Though this does amplify the point and I guess we are now all on the same page.