You left out the fact that ISP’s are effectively a monopoly in most regions of the US, which is a problem even if it happens to be a different company holding the monopoly per region.
Exactly my point. Everyone knows that "Facebook sells your data" but what's actually demonstrable is Facebook uses your data internally for ad targeting purposes, which I'm fine with. Verizon, AT&T, et al are at just as problematic a scale (if not more!) and they are literally out there exchanging CSVs for cash.
Supporting open standards and getting mad about Cambridge Analytica in the same breath is incoherent. The critique here, and the response that Facebook and other tech companies actually undertook to placate the outrage, was that the platform APIs were too generous, and users should not have been allowed to delegate their accounts’ privileges to third parties not vetted by the platforms.
Also, ISP’s have been caught brazenly selling raw realtime user location data which ends up in the hands of bounty hunters: https://arstechnica.com/tech-policy/2019/01/t-mobile-sprint-...
This is far worse in my mind than anything related to FB and Cambridge Analytica. No, Facebook was not selling literal location pings to anyone.