So, even with my permission, a program shouldn't be allowed to manipulate other programs? So debuggers that modify a program's memory should be disallowed? security products shouldn't scan for insecure/bad settings/bugs and fix them? Adblockers shouldn't mess with ads in a different application?

I can tell you, the last thing I want is android/ios like app sandboxing if that means I can't interfere with what apps are doing/configuring. I prefer to have control or finao say about inter-app interaction since it is my device