Yes because the phone companies do not allow the car makers to spy on me, which they should not be doing anyway..

Sorry that is not something i am going to cry for GM over

Not my problem. And if the terms are so bad, then car makers have a simple solution. Make it easy to swap in a CarPlay compatible third party headunit.

That may be true but it's close to a dealbreaker for me and presumably a lot of other people. Not that I'd probably buy a GM vehicle anyway.