Think of all the hundreds of thousands of developers who have put hours and hours into creating livings out of selling items on the app store. You'd be taking away a large amount of peoples living.
Are there really hundreds of thousands of developers who make a living out of an app store?
Considering that there are ~2 million apps* in both the Play and App stores I would say yes. Also considering for many people in the US their phone is their primary means of accessing the internet it's extremely likely that hundreds of thousands of people (not just devs, business people, designers and community teams as well) rely on the app they work on being in one or both of those stores.