The Expanse

The most expensive iPhone retails for $1200, with a manufacturing price of ~$500 and net profit of ~$700.

So if an iPhone costs $3500 to make domestically, then Apple would need to sell it for $4200 to make the same profit. But even if Trump levies his 100% tariff on China, it would still be significantly cheaper for Apple to make iPhones in China and pay 2x the manufacturing costs ($1000), add the same $700 profit, and just charge $1700 for the same model.

So in the end no new domestic manufacturing jobs are made, Apple, an American company, loses business because less people would buy at a higher price, and American consumers get shafted.