You can have third-party Android app stores. Can you say the same about Apple? While I agree that Google has market-dominance, they are not anti-competition or anti-consumer in the same sense as Apple. Android is open source, Chrome OS is open source, etc. Google is actually providing and contributing something back to the community. Apple intentionally locks people to specific hardware and to their app store.
Let’s not pretend they do these things as charity. Chrome is open source because, as a fork of WebKit, it has to be. For other things, they use open source to drive adoption.
The whole "they only do X for profit" is such a lazy argument, because it can be used to argue any side of the argument if you try hard enough.