The future of Mac OS is going to be locked down. It will look a lot more like iOS than classic open computing. It is bad for humanity, but good for Apple's bottom line. It's coming, mark my words.
However, how you can then extend this to:
> The market has spoken and they love the locked down, walled garden approach.
The market hasn't been given the opportunity to choose a more open iPhone or a closed, locked-down iPhone.
When the market is presented with both options, at variable prices, we can then determine what, if any, people are willing to pay for one vs the other.