Turning Facebook into a utility effectively turns it into something it isn’t: a government approved monopoly with special rights and privileges. Perversely Facebook then becomes another tool for people with actual power to abuse in their lawmaking capacity in ways they simply couldn’t now. If your goal is to defang Facebook, that’s probably not what you want.
You have a temporary problem socializing in some circumstances without Facebook, which is entirely solvable by you alone. Facebook is nowhere near a monopoly on its core functions, but certain groups, scenes or networks of people may choose to use it exclusively. You are being screwed over by their choices and blaming Facebook for it.
Also I don’t read Doctorow. No reason in particular, but if you want to cite him, cite him properly and bring his words here into the discussion.