You completely misunderstood me. I'm not really arguing that issue. Google isn't exploiting anything. Google wants 'advertising' in the appstore? No - they want to make their App available to iOS members. Unfortunately, unless you're jailbroken, Google can't offer you their app with a sideloading option.
And I would have less of a problem with Apple charging a ONE time 30%. However, Apple wants to take 30% each month. After the customer has been acquired, why should Google have to continue to pay Apple. Isn't that Apple being profit driven? A good chunk of apps are less than 9.99. Apple gets a one time 30% on those purchases. Why do you feel that they are entitled to get 30% each month?
That's the problem I've always had with Apple's 30% when it comes to services. They do absolutely nothing to earn this money. For in app purchases, sure, no problem. Apple actually hosts that content on their servers, and you're essentially buying a thing from Apple.
But why should Netflix or YouTube give up 30% of their revenue? Make it a transaction fee, but make it like 2%.