The only reason Microsoft can push this as a 'service' now is that 90% of users do not care about, let alone understand any of the technology they use. Doctors, lawyers, CEOs, politicians, even most engineers, have no fucking clue what an operating system is, what "AI" is or why it would be a bad idea to feed 100% of your activity into a black box controlled by a megacorp. And good luck trying to explain to them why something like this might be bad, you need to lay out so much groundwork that by the time you get to training data privacy concerns they have already scrolled though 500 shitposts on TikTok.
It continues to blow me away that these projects get implemented as the only people who can do the work must also understand why it is a bad idea.