Facebook isn't the Internet anyone envisioned, mainly because it isn't the Internet. It's possible to block them completely and still participate meaningfully.
It's not that long ago that conventional wisdom on HN was you should delegate auth to Facebook and the hell with anyone who didn't want to use it to sign up to your startup.
I'm banned (mysteriously) from Facebook, but not from Instagram.
It's a complicated topic, but when you break it down there are billions/trillions of dollars on one side of the equation, and the values of human dignity and privacy and the open web on the other, with very little profit to be made from respecting those values.
I think it's OK to call it out when a company that employs a lot of good people is doing something that is at odds with good values. Maybe they'll think about it, and take the conversation up the chain. Or, maybe they'll laugh at the grumpy old UNIX beard on the Internet for not "getting it". I dunno.