Because it's rife with bad actors due to a lack of regulation. And even the good actors are kind of forced to be bad actors in order to compete. Lacking better regulation it's just a horrible business model for consumers, with really no exceptions since anyone who plays nice will ultimately lose out to less scrupulous players.
I naively consider(ed?) Google a good actor. I still kind of buy that they want to be at least. I'm sure others think differently though and I'm definitely not going to defend them. (Android, Dragonfly)
Privacy mainly and ownership of data. Something along the lines of GDPR in spirit. I also think the details / fine print matter or loopholes will be found.
I think though that appropriate regulation is going to seriously hamper if not utterly destroy the business models of some really big players.
