Developers definitely won't buy a MacBook walled by App Store. All the Unix utilities would be gone, as would be the usefulness of a MacBook.
Why would the UNIX tools be gone? They're part of the OS itself !
Everything else that you install (via brew, ports, etc) wouldn't be allowed (or... that's the thinking if it were locked down).
First of all, the Unix tools are not part of the OS. They are bundled with the OS, but definitely not necessary. Second of all, in a walled garden macOS, you could not have most of the Unix tools, because they break the sandboxes.
That is easily settled though. Apple considers them part of the OS, and so they are. Its as simple as that.
>Second of all, in a walled garden macOS, you could not have most of the Unix tools, because they break the sandboxes.
Which tool breaks what sandbox? I think you're conflating root access with userland UNIX tools.
They're on your iPhone too you just can't use them.