> The App Store was ruled in court not to be a monopoly.
The App Store is a de-facto monopoly, it may not fit the legal definition of a monopoly but it practice it is (or what other App Stores can end-users install on iOS?). I'm not making a legal argument.
> Apple sells tools and parts to anyone who wants them
Where can I buy the tools needed to pair serialized replacement parts with the system? Regarding replacement parts, I don't work in the repair industry so I don't have first hand experience buying apple parts, but Louis Rossmann is telling a different story, do you have a source contradicting him?
> it’s silly to suggest that their repair policies have anything to do with them buying a lot of silicon from TSMC.
I'm responding to your claim that apple never had a monopoly on anything.