Because the use-cases for phones and macs are exactly the same! Because there is no valid use-case for GateKeeper other than Apple wanting to control every piece of software on your machine. Because Apple totally doesn't care if third-party developers jump ship from their platform because the developer tools are locked down.
Because paranoia is so much more fun than rational thought.
Excuse me. I only meant to point out that Apple already has a platform where they control every piece of software on your machine, and so it's not absurd to think that they might try to do this on their other platform. I don't think my post merits your implication that I'm not thinking rationally.
I don't think jumping to that conclusion is any more rational than worrying about the Mustang getting watered down based on Ford's releasing a new Fiesta. Even if Ford does share Fiesta door handle parts with the new Mustangs.