I see this sort of sentiment everywhere. There seems to be a mass delusion occurring. The AppStore is not it's own economic market. It is just one member of many in the actual economic market.
The WalMart down the road from you is not an economic market. It is just a store, one implementation of the entity that is Walmart. But even taking every WalMart together, you do not have an economic market. It is just a store. One store. What economic market is WalMart in? This one: https://en.wikipedia.org/w/index.php?title=List_of_hypermark...
AppStore is just a store, one of many many implementations of a package management system, with retail sales and free apps. The economic market includes AppStore, Google Play Store, LG SmartWorld, Huawei App Store, Sony Apps, Amazon AppStore, Aptoide, F-Droid, GetJar, AC Market, SlideME, Uptodown Market, Itch.io, Cydia, neXva, Bemodi, AppBrain, 1Mobile, Appolicious, Kongregate, and AppLand collectively all together. And far more than that is included in the actual economic market: https://en.wikipedia.org/wiki/List_of_software_package_manag...
Apple has many many competitors in both hardware and software. There is no such thing as "the Apple economic market," or "the AppStore economic market."