“I understand that if people freely offer up personal information to third parties, they can’t really expect that no one will use that information.”
You seriously don’t see a difference between a private email I send to a friend or customer and the government tracking that email?
“If you do not want your data available, then you’re going to have to do the work to conceal it.”
Thats not what the Constitution says. It says the govt must not unreasonably search my private property.
Perhaps you like a police state, not too many other people do. Except the police.
It is not your private property when you give it away to a third party.
I'll say it again for emphasis, since I think this is being ignored:
It is not your private property when you give it away to a third party.