Oh do go ahead and nationalize BT
Given the competence of UK Government in managing IT projects, it will be dream job to nationalize and properly manage a country-wide phone/data network, along with the international connections that go with it. Oh yeah, sure. And that will not at all allow you to implement half-backed Age Verification schemes without asking anyone's opinion, no, no, of course not. Nor will that allow you to "filter" certain sites without having to mention it to anyone either, right ?
Free broadband for everyone ? I give it six months before nobody has anything better than 3G anywhere.
There's not enough popcorn for that shitfest.