:D If perfect law enforcement is the end goal then yes, that's the better security approach.

Now, I (and I assume you and most people) don't value perfect law enforcement. I certainly value my privacy more than I value "catching bad guys" or keeping kids from seeing a trailer for an M rated game.

That's why I'm calling the idea dumb. It won't work and the next steps to make it work better are horrifying. It's better if we didn't even try.