My argument is not that those things don't exist - its just that to my knowledge, I never heard of any real-life implementation that's guaranteed to be NSA-proo

My argument is not that those things don't exist - its just that to my knowledge, I never heard of any real-life implementation that's guaranteed to be NSA-proof[1] - you're welcome to offer a counterexample. 1. Your fancy encryption scheme is pointless if your plaintext can be acquired at either endpoints, of if a bug in the implementation leaks data. The security of the whole matters a lot more than the individual parts as attackers go for the weakest link.