Public utility is firmly defined, at least in the US, by the FCC. Even the Internet itself is no longer protected under such definitions, let alone your "right"

Public utility is firmly defined, at least in the US, by the FCC. Even the Internet itself is no longer protected under such definitions, let alone your "right" to speak on a private companies website. I would absolutely love for the top ~20 sites to all be rendered public utilities. But that would require legislation regulating these private websites as newly minted public institutions and I'm sure the operators of these cash cows would have a word or two to say about the government seizing control of their businesses, even if indirectly through regulation. Right now, legally, Google can do whatever they want on youtube with impunity - if we want that to change, that will require state involvement, because all these sites are way too big for a crowd of nerds on a forum to influence the business models of in profound ways.