That would be the death of Mac hardware. Apple did that years ago, and they were weeks away from being bankrupted. I don't agree with licensing the OS. Other issues with that idea is the close integration of software and hardware that apple enjoys, that would go by the board because the OS would need to be written for the lowest common denominator, much like how windows is.They should outsource the computer division and allow anyone to license macOS and put it on whatever machine they want. That should tip things back in terms of market share.
;-)