Earlier quoted context omitted.
I agree that individuals should control their own devices. I also agree with Apple's implicit claim that if iOS users could sideload apps, millions of idiot iOS users would get their devices owned after they followed some "follow these seven steps to get free $POPULAR_MOBILE_GAME tokens!" guide they found on the web, making the platform less trustworthy overall. Apple makes a good argument that buying an iPhone is al…
Your first paragraph contradicts the second and third paragraphs! If you believe that individuals should control their own devices, why are you in favor of Apple retaining control of every iPhone it sells? Pick one!
My claim is that for most users of iPhones, the situation of Apple being in control of their device, rather than themselves, results in a better outcome for that user (and is oftentimes explicitly preferred by that user as a result, and is reflected in their purchase of an iPhone).
In fact, Apple delegates control of an iPhone's userspace execution environment to any iPhone owner who wants it: they will give you a signing cert for use in xcode to run any app you want on your own device (no developer subscription necessary). This is how AltStore works, and allows AltStore users to run emulator apps on the iPhones they own.