[hda2]

Slowly degrade, cripple, and eventually remove untaxed options like they have been doing with app authentication/gatekeeper. Problem solved.

[lapcat]

Not really, because many Mac apps can't even work with mandatory App Store sandboxing, so the apps would simply cease to exist rather than moving to the App Store.

[hda2]

All the better. Either way, the end result will be the iOSification of macos.