The U.S. has been spying on its citizens since the 50's. It's nothing new and for 99.99999% of the population, it has no impact on their life whatsoever. Opponents of surveillance believe that governments are inherently corrupt and that they will inevitably use any information they gather to either exploit or persecute you. I don't believe that to be true. Totalitarian governments use surveillance to help suppress opposition but they'd be suppressing opposition even if surveillance didn't exist.
Surveillance is inherently neutral. It doesn't turn a democratic nation into a totalitarian one. If it did, the U.S. would have become a totalitarian nation a long time ago (and please don't claim that the U.S. is already totalitarian; if that were true, you'd already be dead or in prison because of your publicly-expressed beliefs).