Facebook don't 'own' your photos- they reserve the right to use them- quite a difference, and yes I'm perfectly happy to use both, since I always assumed that there would be data gatherings like this, it's common sense, so nothing of very much use could be used from me in the first place. My political affiliations are well known and not likely to change, so not using either is really nothing to be too smug about as long as you realise from the outset that you are part of the machine and your privacy is essentially down to your own sense. Some people seem to treat it like the inside of their car, their own little personal Kingdom, where they can sing loudly, f4rt and pick their nose in their own imagined privacy- only they seem unaware the whole world can see them.