I think this is a straw man. I don't think any politician would ever suggest such a thing at face value unless couched in some other argument. For example, after 9/11 a politician would have said, "I respect your need for privacy, but we live in extraordinary times, and we need to temporarily lift the restrictions on our agencies to effectively combat an imminent threat."

The real argument being made isn't that we should give all our secrets to the government, but that we should trust that the government will comply with our 4th Amendment protections and avoid gathering this data without a valid warrant issued by an impartial judge. If you're reading this, I'm guessing that like me, you don't believe a word of that. But that's the argument that's being made, and that's what needs to be debunked loudly and publicly.