Cops can freely buy anything from one of Peter Thiel's panopticon products. He can buy all the data from brokers and companies for a pretty high price, and sell it to cops for an equally stupid price, and your tax dollars get used to bypass the entire concept of a warrant.

No, no need for a warrant. If the cops ask nicely (as opposed to making a demand), and the provider provides the info, there was no need for a warrant. That is the common process today.