Huh, the __user__ paid for the product, so they own it. After the user handed over their money, Apple has nothing to say about who I do business with on that product, or what the conditions are.
You can say "platform" as much as you like, but that's just Apple's way of forcing their way into the argument.
Someone has to make the platform. If they want recognition for that or compensation, maybe they should apply for government funding. Don't bother the consumer with it.
And if you don't like a government regulating a market, then you haven't seen a company regulate one.