I'm shocked by the supreme court's logic that resulted in the third party doctrine. I absolutely have an expectation of privacy when it comes to any data gather

I'm shocked by the supreme court's logic that resulted in the third party doctrine. I absolutely have an expectation of privacy when it comes to any data gathered by counter-parties that I enter into a business relationship with. Even if I didn't, and event if those contracts allowed for sharing of that identifying (or anonymized) information, it is an incredible leap to assert that government agencies are within their rights to access this information without a warrant!