Just because people will go along with something because they have no other choice, it doesn't mean it's a fair business practice that we should allow.

Apple's deal is still an acceptable business proposition because there aren't any alternatives. Android users don't spend much on apps compared to iPhone users. It's an ok market, but not a great one, and in the US, if you aren't on the iPhone, then you aren't relevant, period.

Maybe if there was an actual competitive market on iOS for app stores, we'd see what app developers actually thought was a good business proposition, not the only take-it-or-leave-it (but if you leave it there's no way to be successful) proposition they have now.

> because they have no other choice

People clearly have other choices here: develop for Android, develop for the web, create a telephony-based or text-response system, operate in bricks-n-mortar format, etc.