This isn't new information we're talking about. It's information that's been on your account since you started using FaceBook. Why are you suddenly worried about them sharing your data with the world?
Sorry--I'm not "suddenly worried," I was worried from the start, and hence don't have a Facebook account. I apologize as if I inadvertently made this seem like a "that's the last straw" moment for me.
However, I do know several regular Facebook users that do indeed view this sort of thing as too much, and (for the moment, at least) they are reconsidering whether they want to continue being users.