For many people, not being on Facebook is neither a choice nor an option because their social network - the ones they depend on - are all there and nowhere else (except probably WhatsApp, which is owned by Facebook and where the contact metadata is shared between the two).
In my opinion, only some privileged people are able to really have this choice and act on it. The rest don't know (not privileged enough to know/understand) or don't care (because their social network is already on Facebook).
It's a 'privilege' to not be on Facebook? On Maslow's Hierarchy Of Needs, nowhere is there any mention of 'online services' or 'Facebook access', or even 'Internet access'. If ever there was a textbook "Sh*t HN Says" comment worthy of the moniker, yours is it.
Facebook is a business, just like your local grocer, just like any number of restaurants, just like a bookstore. If any of the above aren't giving you the service you desire, you are welcome to pack up and take your custom elsewhere. Rinse and repeat this pattern enough times, and the 'giant' will either go out of business or change their behavior as to woo you back. That's commerce. If your friends will only ever interact with you on Facebook (or any single online service), my suspicion is that they aren't really your friends and it's time to find some new ones.
Not friends. Networking. Let me give you a concrete example. My wife is an animal rescuer and she coordinates her activities with the rest of about a few dozen rescuers in this city, and thousands across the country, almost completely on Facebook, or ocassionally on Whatsapp. It is realtime, convenient, real name based and privacy settings exist to block trolls and nuisances.
Now what do you suggest she use for her communications? Plain old telephone? Or email lists? Neither are anywhere near the convenience of Facebook. And these are all non-tech folk, so suggesting they host their own BBS or some such option is a total nonstarter.
The point is, millions of people across the world use Facebook for similar use cases. Yes, they could ALL take the time and effort to learn some tech and migrate to another platform. But that's like asking the majority of Earth's people to become self-sustaining permaculturists. It's very unlikely to happen.
All I can say in response to your comment is that you display both naivety and ignorance about how the world works. You could start learning more about people and network effects to make better arguments.
You might want to educate yourself on concepts called monopolies and network effects before you make yourself look even more clueless.
Also, ever noticed how Maslow's Hierarchy Of Needs also doesn't mention electricity or gasoline? You are kindof at the wrong level of abstraction there.
Facebook is not a monopoly. I'd rather make the argument that Microsoft, today in 2017, is a monopoly (protip: they arent) than try to argue that Facebook is one.
Personal attacks are not allowed on HN and will get your account banned. You broke the site guidelines repeatedly in this thread. Please don't do that again.
In my opinion, only some privileged people are able to really have this choice and act on it. The rest don't know (not privileged enough to know/understand) or don't care (because their social network is already on Facebook).