[landryraccoon]

The problem with this line of reasoning is that it doesn't account for how Facebook et al.. could have existed in the first place, or why there could be anything wrong with it.

Facebook exists. Parents let their kids go on it. Kids go on it happily. By your logic, since parents obviously care for their kids, and parents let their kids go on Facebook, Facebook is good for kids, parents and society as a whole. Statistics? Over a billion people signed up to use Facebook. Statistically, you're wrong and the people who like Facebook are right.