I'm sorry but this analogy does not hold water.
A Gillette razor handle is like an iPhone. The razor blade cartridges that are compatible with the Gillette razor handle are like apps. I don't use razors anymore, but when I was in height school, I remember using third party razor cartridges with Gillette handles.
Let's elaborate this analogy. Gillette (Apple) does intend for cartridges (apps) to be installed on the handle (iPhone). So where is the cartridge retailer (App Store) in this analogy? Gillette wants to sell as many cartridges as possible. So, they allow Target, Walmart, Amazon, etc. (developers) to sell cartridges that are compatible with this wonderful razor handle. However, Gillette wants a cut because they spent a lot of money to design, manufacture, advertise and sell the handle that these cartridges take advantage of. Only if these stores pay Gillette for a license (annual $100 developer fee) to sell Gillette-compatible third party cartridges. Oh wait, not only that, but they also have to pay Gillette 30% the price of each cartridge sale. Gillette, feeling generous one day, decides that if the developer sells a cartridge every month for a year, then they will only take a 15% cut.
So, third party developers are the essence of the App Store. The App Store would not exist without developers making great apps. If developers formed a union and boycotted the App Store by removing their apps from sale, what would happen?