This is being presented like Apple is eliminating the ability to perform hyper-specific ad targeting at individuals. No matter how locked down the Apple platfor

This is being presented like Apple is eliminating the ability to perform hyper-specific ad targeting at individuals. No matter how locked down the Apple platform becomes, Facebook still knows exactly who my friends are, where I'm posting pictures from, what brands I've engaged with, that I really like outdoorsy pictures on Instagram. I'm fine with this, I'm engaging with Facebook and I expect them to use that data to target ads at me. What these changes in iOS affect is their ability to track me across my apps via the advertiser ID when I explicitly take steps to avoid being tracked (alternate email addresses, not entering my phone number). How can anyone defend Facebook's need to know everything I do on my phone despite me taking reasonable* steps to hide that information? * I feel the need to point out that my "reasonable" steps are for a moderately savvy user of technology. I'd guess that the vast majority of internet users aren't aware that Facebook knows everything you on almost any site you sign into with the same email address.