The problem is the idea that Apple should own the "iPhone Market" and be able to charge a gatekeeping fee in the first place. Once Apple sells an iPhone, Apple obviously no longer owns said device. The person who bought the iPhone does. The idea that is completely okay & normal for Apple to be able to restrict and control what people do on their own devices is rather disturbing to me, and Apple being able to maintain control of devices they don't even own anymore is hostile to creating a competitive marketplace.