Won't somebody think of the data brokers!?

The government will, given that they're a fairly integral part of how the US economy.

Every single financial institution relies on these data-brokers. U-haul needs data brokers to be able to verify your driver's license, the TSA needs data brokers to let you on a flight without an ID. There are simply countless of reasons for why you wouldn't want to break this system for people who haven't opted in for breakage.