I think in the public sphere, many don't think of Big Tech as privacy intruders, even with Facebook's public failures, many continue to use their services. I'm not sure if most people care or don't care. But when Apple took the initiative to limit 3rd party cookies by asking it's users directly whether they wanted to allow it or not, the majority chose not to allow it. Which shows people don't want their data to be tracked.
On a related note, I don't think I've ever clicked on a banner ad on a site, or any twitter/youtube ad, etc. There's certainly an element of marketing that's brand awareness. But all the other metrics about click rates, and purchase intent, etc- I have no idea how this all adds up to the massive numbers that Big tech pulls in from ads on the Internet.
Feeds into what "system".
Do you really think Google/Amazon/Apple/etc are handing over your Name+Phone number to say Spokeo [1]? I just don't think you get it. Your phone company is the one that is selling your data to anybody not FAANG.
It's easy to say some "ad-tech" are doing X, but actually get a whiteboard out and start with say Google and list what products of theirs collect what data. Then list the process by which say the USG buys its from Google. I'm very interested in what names for the processes are going to be because I really doubt you'll find any for the ad-platforms.
Even the data that is collected by Facebook + Google, are mostly non consensual and we don't know what they do with it. Or it's like the classic gun to your head, to use our "free" services aka, if you don't pay for it, you are the customer.