I don't get your point -- you're allowed to not like an invasive company and you're allowed to refuse to use their products if you don't like what they're doing. I don't think anyone in this conversation is making it their personality.
You came into this comment thread without any insight to add or anything interesting to say. You came in just to cast judgement “I feel sorry for people who don’t use Facebook”.
In fact it is you who has tied their identity to feeling superior to others. Other guy doesn’t sound like it’s his identity at all.