At this point I think privacy is just a myth.

This is the cop in your head to kill. State surveillance capabilities are limited. While in theory it's difficult to block targetted surveillance the key is to avoid being targetted by blending in.

James Micken's model of mosad and not mossad threats apply. If a state turns its gaze on you, you will lose. However passive dragnet methods to try and decide who to turn the eye of Sauron on can be hidden from.