Apple does not care and will never care about open source other than the bits it has to care about because they're a part of Darwin, their core.
They're a company offering a particular "experience" and open source products do not fit into that model well at all. I use apple phones because I'm partially blind and for a very long time the accessibility story on Android was a screaming nightmare (I'm told it's got better) but I have no illusions that they're anything other than a profit seeking MegaCorp with all that implies.