I've mentioned this many times before: I have NEVER used Facebook. Because of that, I feel like I am nowhere near the risk of being an addict to something that causes such stupidity,
Some people are naturally stupid.
Society is very large -- it's hardly going to be doomed because a select few people within it have trouble letting go of a website for a few hours.
It's doomed when it's doomed. Something only happens when it happens.