Earlier quoted context omitted.
Where else would the Android handset makers go, Microsoft? Actually that sounds good, we could do with a third viable handset OS, but that's a digression and at this point a bit of a fantasy. They have nowhere else to go. Back in the early days of iOS and Android the consensus seemed to be that the smartphone OSes were pretty much done. To compete with iOS all you had to do was match it's features, or catch up, and o…
Google has tens of billions a year in revenue from Android. Only in comparison to Apple revenue or Google's advertising business can that be called a pittance. :)
So no, Google do not make tens of billions a year off Android. They may possibly make a profit off of it of a few bn a year, but that's about the best we can say. On the other hand they pay Apple $3bn a year just to be the default search engine in Mobile Safari. That's how big the gulf is in the mobile market between them and Apple. They make about 4x as much money off iOS as they do off their own operating system. If I was running Google there's no way I'd consider that acceptable, because all that iOS revenue is at Apple's discretion.