The sense of entitlement comes from the purchase of the device, which is then remotely controlled by a party who has no property interest in the device following purchase.

If you bought the phone, you should be able to run all the apps you want on it, not only the ones Apple and the various regional governments say you are allowed to. Surely you see the abuse potential (which is not theoretical - iPhones in China cannot type or display the flag of Taiwan or install VPN apps) there?

Why do people defend vendors remotely disabling functionality in devices end users have bought and paid for?