you realize that any fucking Shaniqua working at a factory can spray paint "Nigger" on her desk and sue you for racism and walk away with $100 million ? labor is a lot more expensive than just the wage you pay. if it costs $10 to make iPhone in China it will probably cost $100 to make it in US. yes it won't really make a difference to Apple's competitiveness, but the difference in profits will be tangible.
"According to a report by Bloomberg, the labor cost for assembling an iPhone 12 Pro Max is around $10."
https://smallusefultips.com/how-much-money-does-it-take-to-make-an-iphone/
The problem for Apple is that their subcontractors won't be allowed to break the arms and legs of American workers.
And they might have to pay triple the wages. So $20 / phone.
The problem then for Apple customers is that bluecollar Apple assembly-line workers would then be owning late-model iPhones.
Discussion
Bro, if you think the USA has problems with that, visit AU/UK/EU. And then there's planning and permitting.
The USA could still do this, and turn deindustrialisation around. No other Western country is in that position.