My opinion won't be popular. I think it is nice to have a choice of a walled off platform. If I wanted a "more open" platform, I would get an Android phone. There are plenty of amazing Android phones. I choose the tradeoff of Apple's curation. Yes, I cannot run arbitrary software and sometimes it is a disadvantage. Yes, I don't agree with all of the App Store rules all of the time. Yes, I don't think the App Store re…
On Android, you have to abide by Google's rules if you want to be in the Play Store; Amazon's if you want to be in theirs; F-Droid's to be there.
Consumers have choice over whose rules they care about. In a hypothetical iOS with app store competition, what you write would presumably still be true for the Apple App Store, there just might be an 'F-iOS' or whatever that insists the app is open source too, for example.