

The tool already exists and is used for serious stuff (dealing with the treasury department, police, banks, bond auctions), the only difference is you would be forcing mainstream social media platforms to get an OK from that government’s platform.
Sorry but if you can’t trust your country’s system as a legitimate large scale shield then there is no possible defense against multinational conglomerates and at that point you’re better off just going bunker prepper, I don’t really know what your point is. Democracy doesn’t stick in low trust societies.

The id check already exists, they’re just planning on forcing social media companies to go through it.
In an ideal world social media would be decentralized and free of commercial purposes, just a public square. The stuff these people offer wrapped in social media is highly addictive, that’s basically where all the internal R&D goes.
My point is, I really doubt banning social media is democratically viable. It would get revoked shortly. Best thing we can realistically do is put in place the usual barriers and limitations we have developed over the years for other similar products and services: age, disclaimers, taxation, fines, and so on.