Earlier quoted context omitted.
These laws aren't about protecting America and its citizens, but rather as means to control them.
People just toss comments like this around as though they were facts when in fact it’s completely paranoid made up q-anon level nonsense. These laws work a very specific way and have very specific controls in place to prevent shit like you describe from happening which you could go and read up on if you wanted to but it’s much easier to fear monger amongst one another because it plays to your ego that somebody who is…
And of course this applies not only to the NSA spooks, but all the way up. You shouldn't be any more comfortable letting 'the government' spy on you, than you would be letting me spy on you. If you want another example along the same lines, spooks spying on their love interests is so common that there's a slang term for it - LOVEINT [2]. Basically, don't grant people power over other people unless it's really just completely and absolutely necessary, because it will be abused. So the benefit needs to substantially outweigh the inevitable abuses. And in this case, that obviously doesn't hold.
[1] - https://www.nytimes.com/2014/07/21/us/politics/edward-snowde...
[2] - https://slate.com/technology/2013/09/loveint-how-nsa-spies-s...