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.