@Khaptain
You're absolutely correct, we do need a definition of Privacy. The challenge is that capitalized Privacy is a concept, not a thing. Concepts tend to defy universal definition because they mean something different to everyone.
As a civilization, we have chosen a hierarchical, top down process (government) to draw the boarders around a concept and define it for everyone within their territory. The primary role of any government is to define concepts. Every single act of government is either defining or defending those definitions. Rebels and insurgents are those who disagree with the governments definition of those concepts. In a democracy the definition of a concept is (in theory) a reflection of the voters. In a dictatorship a concept is whatever Admiral General Aladeen says it is. In a theocracy a concept is defined by a god (in theory).
The flaw in defining a concept, regardless of who is doing it, is that some concepts, like privacy or freedom, exhibit behaviors with an analogue in Heisenberg Uncertainty. The more you define those concepts, the more you change their meaning: If Freedom is defined, it is no longer freedom, it has become something else entirely. Simply by defining Freedom you have eliminated it, for it to exist it cannot be bound, at all.
Similarly, some concepts, such as Freedom are also digital. They are or they are not, they are not subject to analog or quantum definition or analysis. It is impossible to subject those concepts to anything beyond yes/no, is/isn't, 0/1 because the concept has ceased to exist once you try. You can't have a little Freedom, or most of Freedom, you either have all the Freedom or none of it.
It's a very big mess all the way around. A government must define concepts, or it is not a government. However, in defining concepts it also eliminates those concepts from existence within its territory. Therefore a government can never be successful, it can never fulfill its purpose for being. All governments are failures by default from the instant they are created.
The side effects of failure through existence are how you end up with a country like the US which enshrines Freedom but denies women the freedom to show their titties outside of a windowless room but gives me the freedom to buy the .50 BMG mobile anti-aircraft emplacement I use to vaporize groundhogs. A country where you are free to extort money from sick people but not free to grow certain plants. A country where I'm free to advance my knowledge as far as I like, but I'm not free to share it with whoever I please. A country where I'm free to buy whatever I want (see cannon) but I'm not allowed to purchase software or music, only license it, where buying something does not transfer its ownership. A country where private corporations and law enforcement are free to access to my banking and healthcare records for no apparent reason, but I'm not allowed to withdraw more than $50,000 cash without filing out forms, waiting 48-72hrs and getting phone calls, and once a visit, from the FBI, because you're only free to move finite amounts of cash around.
None of it makes any sense and it's all royally fucked up.