It may well be possible to mitigate their ability to watch you by wearing enough tin-foil hats. Even if you succeed, all you've achieved is to protect one solitary person at the cost of considerable personal inconvenience. Worse, once you consider yourself "safe enough" from prying eyes, your incentive to actually act on what they're doing will be diminished.
I think that we should try not to be meek about this issue, passively hiding ourselves and then getting on with our lives saying "Fuck you, got mine". Why should the tech community flee the very Internet that it has played such a crucial role in building? Is the idea that our democracies could eventually fix this situation really beyond all hope?
If you live in the UK, write to your MP (http://www.writetothem.com/). Support PPUK (http://www.pirateparty.org.uk/) if you feel strongly enough, as they're seemingly the only political group treating this matter with the seriousness it deserves.