You're right though. First off, I hope your parent was joking, because if not, what he said makes no sense and isn't really related to the subject at hand. Second, while the whole domestic spying scandal is serious business, it doesn't have to be injected into every conversation. Third, you're right. There is no evidence to support that anyone has ever targeted a random individual for the sake of it and you probably shouldn't be using something like Facebook if you plan to discuss criminal activity, and yeah, no matter who you are you can't expect an inkling of privacy online. But that's not really specific to the government either. I can spy you, the guy down the street can, it doesn't take the kind of infrastructure the NSA has to spy on someone. Hell, I'd be more paranoid that random people are spying on me than the NSA. The randoms are more likely to target you for no reason while the NSA, from what we can gather, is more than happy to collect your data and never look at it - like ever.
Questioning the amount of paranoia we seem to have and being pro-NSA spying are not the same thing and it seems like a lot of people aren't able to separate out some of the nuance.
It's good to get it out sometimes ;)
Maybe there should be a internet law about how anything being discussed on the internet dealing with technology will eventually delve into something on/about surveillance :P