I'm a privacy advocate, but I gotta tell ya...
trying to protect your digital privacy is an exercise in futility.
Digital privacy just isn't limited to online activities. It extends to just about everything you do in your day-to-day economic life - and you can't control data on systems over which you have no direct control. If you write letters to everyone that you have done business - seeing a doctor, buying food, etc - within the past 5 years and tell them that you no longer permit them to collect and store data about you, then every single one will reply: "We can't do business with you..."
The possibility that some form of digital privacy guarantee for citizens will ever be instituted is virtually nonexistent. It would take a national outcry of epic proportions - essentially a mass revolt in the streets the world over.
Governments (specifically law enforcement and security agencies) - rich, poor, democratic, non-democratic, etc, etc - all have the same opinion -- that all forms of online activity are exempt from privacy protections. They might not state that openly, but I can guarantee that is the fundamental precept that guides all their secret internal security agencies - for both domestic and foreign activities. There's no way that they are going to guarantee citizens online digital privacy rights. The prevailing attitude is:
"Sniff it all, collect it all, know it all, process it all and exploit it all."
Some governments are far ahead of others, but give it time... eventually they will all catch-up.
Until many millions of people unite and demand a change - and keep demanding it until things actually do change - nothing will change.
It's the way of the world...