Adding to what the other commenter said. A lot of electronics manufacturing is automated. US is costly because of mainly cost of human labour, but a lot of component design is anyway happening in countries outside China where human labour is not cheap. Reducing reliance on PRC doesn't mean, doing everything at home.

Take the example of processor, it is ARM, a British design company's spec followed by Apple, a US company to design their chip, which is made by TSMC, a Taiwanese company with equipments from ASML, a dutch company.