FTA: "then that I think does not strike the kind of balance that we have lived with for 200, 300 years."
200 years ago, it was not possible to cast a dragnet and catch everyone who was doing Something Bad(tm). The government had to get a warrant to open mail; today, the NSA can sift through billions of messages (metadata, they say) in a second.
Even considering US Mail: you could not keep track of who was sending whom mail, at scale. But today, every letter that is mailed has its front and back scanned (for reading the address); but more importantly, these images are saved for future use.
All of this is possible thanks to technology. And when the balance was tilting in their favor, the Establishment was quite happy. But when the balance tilts the other way, suddenly they're crying like a spoiled child whose toys have been taken away.
You can't just throw tantrums when things don't go your way. If the technology permits E2E encryption, they'll just have to live with it and find other ways to catch criminals.