The data they generate from watching you themselves they fully intend to sell

A healthy dose of skepticism is always warranted, but I wouldn’t state this as fact when we don’t even have evidence of Apple presently doing these kinds of things (i.e. selling the other biometric data their devices collect). They aren’t an ad company like Facebook or Google, and it’s against their own privacy policy. If Apple were caught doing this, it would be a huge scandal, not business as usual.