Sigh.

Apple cannot lockdown the Mac. You can’t have a development machine that is incapable of running arbitrary code. Back when they still did WWDC live they said that software development was the biggest professional bloc of Mac users. I’m certain that these days development is the biggest driver of the expensive Macs. No one has ever made a decent argument as to why Apple would lock down the Mac that would also explain why they haven’t done it yet.

Passivity isn’t hostility. There isn’t any evidence that Apple is considering locking down the Mac. They could have easily done that with the transition to their own silicon but they didn’t despite the endless conspiracy theories.