Earlier quoted context omitted.
> That’s like complaining that IKEA has a monopoly within IKEA stores. I feel like the fact that only Apple makes iOS devices is what's confusing people. Suppose that Tesla is the only company that makes electric cars and also the only company that has any electric car charging ports. (This is a hypothetical; in practice other companies offer both electric cars and charging ports.) They don't have a monopoly on cars…
The problem with your argument is that electricity is fungible and it's wide available. When you buy you Nissan Leaf, you don't need Tesla's charging ports, you can plug it on any power outlet. You might miss the fast charging, but that's it. When you go buy a phone, one of the factors you have to decide is "what app store do I want". If you go with Android, you might miss a few apps, but so what ? Most of them are a…
You're explaining why Tesla doesn't have a charging port monopoly in practice. The hypothetical is that they do. You can't use any other power outlet in the same way that you can't install an Android app on an iPhone.
> When you go buy a phone, one of the factors you have to decide is "what app store do I want".
Which is what creates the app store monopoly. There wouldn't be one if you could make that decision independently, which is the whole point. It's classic tying.
Moreover, the "customer" of the app store is as much the developer as the user, given that they're the ones paying all the fees. But they don't get to choose between platforms any more than Walmart chooses to operate in Florida instead of California, because they have to reach their customers in both regions, not just one or the other.
By contrast, Nike can choose Target instead of Walmart because they both operate in both regions, so they can still reach substantially all of their customers through one store if the other is being unreasonable, since it's much easier for the customer to switch stores for a desired product when that doesn't require switching locations/platforms at the same time.