I couldn't have been more wrong.
Not having a facebook account (or any social media website account) forced me to be more active. It forced me to contact my friends face to face. This has HUGE advantages.
This notion that facebook is integrated into our lives tightly is absolutely an illusion; one that Facebook relys on (or any site like it). Take the initiative and go out of your way to contact your friends/family "the old fasioned way".
Rallying groups for a cause isn't as hard as it seems to be, either. You just have to work a bit more. So what? Our society(ies) is/are becoming so lazy it's almost unbearable.
Facebook does not dictate your life in any way, shape or form. There are many people who don't use it and are just fine without it.