I have some thoughts on this I’ll post as a comment. But basically the predictions of their re-shoring being a total bust were nonsense. It doesn’t matter at the end of the day if their efficiency is only 80% of that of their fabs on the island, if it’s enough to be part of what supplies the entire west with all they need for laptops and smartphones and gaming consoles then it’s enough to no longer need that occupied part of China or care what their actions taken against China result in as far as consequences.
Last I read that the factory wasn’t going to be self-reliant, has that changed? https://www.theinformation.com/articles/apples-plan-to-make-chips-in-arizona-tsmc-nvidia-amd-tesla