Because that would preclude the internet from being useful for a rather large portion of people's lives.
(Not that I believe you have a right to privacy when you organise as a neighbourhood group and basically act like a tiny, kleptocratic, unelected apartheid regime.)
How so? The current state is that nothing is private if it's on someone else's server. What I described is the current state. Just because you trust Google not to publish all your email doesn't mean they're private.