Oh, I'm not disputing that companies like Amazon dissect data whenever they can, my beef is with the assertion that Amazon, Google and others literally record you 24/7. It's not just that there's a lack of evidence, it's that it doesn't even make sense... Amazon and Google don't need to listen to hours of background noise and indistinguishable conversations in the off chance you'll say something they can use for ad targeting.That's where you are stuck in 2005.
Today everything that they are capable of recording and collecting is recorded and collected. There is no such thing as a server log that just sits on a server anymore. Absolutely everything by almost every company out there is collected, analyzed added to user profiles and then either sold or directly used for marketing purposes.
There is no such thing as data that doesn't get used anymore. Venture capitalists will literally shoot down your business plan and send you packing if it doesn't include provisions for monetizing user/customer data.
In 2005 you could opt out. Not anymore. Haven't really been able to for a decade.