1) Because no amount of information will ever be complete, and in any event there's no way to analyze that information efficiently. If you had the recorded phone calls of every customer you deal with, would that solve fraud? Of course not, because they'd have to mention the intent to defraud, and you'd have t listen to the conversation.
2) I find it strange that you believe that you actually have a choice at all. So far no one has come to my house to ask what freedoms I prefer, nor have they asked me whether I'm okay with giving up more freedom in general. And I still don't understand why you think these freedoms are somehow exchangeable, as if the government will be content to give back freedom to assemble if they can just take away enough privacy.
2) I find it strange that you believe that you actually have a choice at all. So far no one has come to my house to ask what freedoms I prefer, nor have they asked me whether I'm okay with giving up more freedom in general. And I still don't understand why you think these freedoms are somehow exchangeable, as if the government will be content to give back freedom to assemble if they can just take away enough privacy.