I think a more fundamental problem is a single private company having a near-monopoly on various public communication channels, and having financial interests in various global dictatorships. The Founding Fathers could not have predicted this. Google's "We're a private company" get-out-jail-free card cannot continue to apply.
The founding fathers gave the USPS a monopoly on the major communication channel of the time. Maybe it's time to update those laws to give them a monopoly over online communication, too? I see no way this could go wrong.
That's why envelopes were sealed.