Earlier quoted context omitted.
As a US citizen you still have some semblance of rights under the constitution that dictate what the government can do.
Snowden's leaks showed that the NSA was simply ignoring the 4th Amendment, and that the secret FISA court was letting the NSA do so. Theoretically, the Constitution protects you. In reality, the intelligence community acts largely in secret, and there's very little preventing them from violating the Bill of Rights. Citizens don't even know what rights they've given up until someone like Snowden spills the beans.
But you turned this question into comparing US to perfection. Yes, you are right. US is not perfection.
But there is a big difference between 70 to 10, even both are not 100.
What Snowden revealed does not make 70 to 10. If you think that way, you don’t understand how bad an authoritarian regime is.