Safety/emissions features are a much different animal than giant 15-inch touchscreens, seat warmers, persistent mobile data uplinks, and 25 buttons on the steering wheel.
Most of the things you listed are both a good idea and legally required.
Automatic braking systems are only a good idea if they are 100% reliable, and everyone here will attest that no technology is ever 100% reliable. I'll reserve my judgement about whether it's a good idea until the first class-action lawsuits for spurious braking have been settled.
Most of the things you listed are both a good idea and legally required.