I just hope they haven't awoken a sleeping giant. Facebook has enormous capital and engineering capacity. If they decided to have their own app store and/or phone ecosystem, their brand might position them as a viable competitor to Google or Apple. But would we be better off for it?
They already tried their own phone ecosystem. I'm not saying that they shouldn't/can't try again, but it seems like Facebook's hubris is their worst enemy.
"We have invented something no one else has thought of. A small personal computerised device. Now you're able to stay docked twenty-four seven. On the bus. You can dock. On the subway. Stay docked. You can be docked in at home, and at the same time, you're docking with some kids at the public pool. We went to the guys at Fruit Computers and we told them we wanted to make our hardware as compatible as possible... Now you can dock your Lifeinvader to an iFruit or any other device, and it'll take all the data off and reformat it into Lifeinvader-friendly information.
I'd suggest getting a Pixel or other Android device if Apple's privacy stance bothers you. They will act on behalf of the consumer, regardless if you feel like "but it's my phone!".
Yes, it's your phone. But not your app store. You can use your iPhone perfectly well without ever having opened the app store.