The idea that Five Eyes is unique in its pursuits and "any Western country besides the u.s." isn't monitoring everything that is technically possible is so naïve that I'm amazed you worked for PGP. I don't normally go after people for being anti-American, but I'll make an exception here because your ideology is making you look comical.
You're a foreign national with an interest in cryptography living in Switzerland. Of all the people in the world who shouldn't be so absolutely clueless, it's you. They're on you like stink on shit, and suggesting otherwise is laughably stupid. What do you think, Switzerland became a discreet financial haven out of a measure of luck, while Swiss intelligence sat around being good, decent, idle people?
For all of my extensive problems with U.S. intelligence, they at least made an effort to uphold the law. They failed, yes, but so many pivotal decisions were around the legal framework. I wonder how such a conversation goes in Ukrainian intelligence, or German, or Mexican. "We have a lead on El Chapo but we can't follow up because it's illegal to wiretap." Yeah, okay.
Come back to reality, bud.