I understood this stance more 10 years ago, but now we have many layers of fairly well documented exploit tactics and none of them rely on the app store. However forcing users to use an app store was supposed to benefit us has clearly failed.
And, somehow, the indignity of being forced into paying apple a 30% tax for a market they wholly own never comes up alongside other paternalistic arguments....
Can you elaborate on "fairly well documented exploit tactics"? My impression is that most of these are either social engineering, for which we need to hire better designers, or complicated chains of hard-to-find primitives only accessible to state actors.
There's definitely problems but the solution isn't to make the iPhone a general purpose computer. We definitely need to defend the existence of general purpose computing at a time where regulation is likely to begin encroaching on it, but the promise of the App Store is "pay a 30% tax and any app you download here will be safe." In my mind, at least, that's the promise, and perhaps one solution to the situation would be to erect consequences to breaking that promise.