This is a false equivalence that keeps being brought up on HN. Yes, authoritarian government have mass surveillance, but the converse isn't necessarily true.
The only very clear example of the government getting more authoritarian is in the TSA. (where they now are fondling our balls for our "safety") and to a smaller extent the DHS, prison authorities, and NSLs - smaller in the sense that it has a smaller impact on society.
We're still a nation of laws, and just because the government knows more, doesn't mean it can actually do more.
Imagine for a minute that the president himself personally hated your guts and wanted to make your life miserable. Now imagine he also knows everything about you. What advantage does that really give him? Okay, if you didn't pay your taxes or something, then he could screw you over. But assuming you're law abiding, other than making your traveling an absolutely nightmare there isn't a whole lot he can do.
You can go into fantasy land and say he'll send the CIA to go blackmail you with information about all the tranny midget porn you watch - but lets stay within the framework of what is legal for the government to do.
People aren't afraid of surveillance because it has no impact on our lives. The government isn't actually misusing the data on a large scale. That's why we didn't know about all this NSA stuff for so long.
Ironically, now that the surveillance is out in the open "they" can try to become authoritarian. And my bet is that if they start trying people will go ape-shit. They'll all get voted out and everything would get rolled back.