Your FB friends are only fake if you are friending people you don't really know in real life (I don't understand why anyone would do that honestly.)

I find the people I know who use FB are like me. They keep up with family who might be a distance away. They keep up with old coworkers and friends they don't get to see anymore. They don't friend random strangers. They don't have a jillion "friends" on FB, but instead have a smaller set of friends who they actually know and care about.