As I see it, the problem with Facebook is that it is monopolizing a space that we should all desire to see open and dispersed. Is it good to have one company monopolize all online social interactions among all humans on the planet? Of course not. People spend egregious amounts of time on Facebook, which is wonderful for Facebook and stifling for the rest of the internet. If you recognize these problems you should abandon Facebook and reject it on principal. With so many people and business on board, this is actually quite hard to do, which is exactly why it should be done.