Joseph Cox’s reporting on the geolocation/tracking shit the US Gov buys up really highlights the direct link between consumer tracking (to sell them shit) and government intrusion into privacy.
Please let me know how to buy bulk consumer data from Google/Microsoft/Apple/Amazon/etc-ad platform.
Ad-Tech isn't the ones selling data; they want to be high up in the value chain. Your ISP/phone company _is_ literally selling your geo-location and data (internet) usage.
I'm not disputing a data broker sells data; I'm claiming that ad-platforms don't.
It sounds like you just aren't aware of how deep a rabbit-hole the ad-tech space is. Google gets to be the relatively-clean "platform" at the top, but they don't exist independently of the rest of the industry.