It's not like Apple provides their platform and then if you don't want to use it then fine, you're on your own. They are actively hostile towards you doing something else.
If I leap off your analogy, which again doesn't really work, it's as if they throw tomatoes from their steakhouse as you go towards the pancake house.
If you go and develop for android (the pancake house) how can they possibly be hostile toward you? Sure if your want to develop for both then it's not ideal, and I agree it sucks to have to learn two languages, but that's not apples problem.
Are they? They own the OS. And they reserve to themselves the rights to change how it behaves. There’s no standard API, only tooling. So yeah, it’s obvious that you’ll be in great pain if you try to sidestep the tooling. Everything apart from their SDK is and will always be an hack.
It's not like Apple provides their platform and then if you don't want to use it then fine, you're on your own. They are actively hostile towards you doing something else.
If I leap off your analogy, which again doesn't really work, it's as if they throw tomatoes from their steakhouse as you go towards the pancake house.