Here is PJ O'Rourke writing about this in the 1960s in the US.
https://books.google.com.au/books?id=WEmN1ZKrYpsC&lpg=PA238&...
People don't just don't care that much.
It is worth worrying about though. With the NSA and computer surviellance we've created a 'turn-key tyranny'. And people have been worrying about that since at least the 1970s: http://www.washingtonsblog.com/2012/04/influential-senator-w...
Well, it's not easy to understand. At times they've cared enough to extract meaningful change, so we shouldn't assume that that will never happen again. If you ask them privacy questions phrased in the right ways (I mean for clarity, not trick questions), they will often be pro-privacy.
Also, as Schneier says, we're relatively new to the internet. Who says people won't come to understand it, and the privacy issues that come along with it, better? https://www.youtube.com/watch?v=0XF2EL43S8E
While I concur that many people have the "but I'm not doing anything wrong" mentality, even if you do care, you have no influence on the situation. Both of our 2 parties are apparently happy to let the intelligence agencies trample the 4th Amendment. It takes an odd duck like Ron Paul (http://www.zerohedge.com/news/2013-06-11/ron-paul-warns-elec...) to actually stand up to such things. We need more of these kinds of voices in our political system, which is why I vote Libertarian in any race I can.
Edit- Superficially wrong about this (the requirement for this nomenclature changed, but it's still acceptable usage). However, I think I'm right in the effect, as:
>The concept of a subject remains in the law, and the terms the Queen's subjects, Her Majesty's subjects, etc., remain in use in British legal discourse.
But guess what the electorate will say? "They only came for the Socialists. I'm not a Socialist". Sad times.