Most of the components of cellphones, computers, and other electronic products are now manufactured in China , so assembling the device half-a-world away would create huge logistical challenges, the article points out.
China now has a far larger supply of qualified engineers than the U.S. And China’s factories are far bigger and can react faster than those in the U.S. “Made in the USA.” is no longer a viable option for most electronics products. So, many companies have closed major facilities in the United States to reopen in China, and middle-class jobs are disappearing as the nation has stopped training enough people in the mid-level skills that factories need.
http://www.kurzweilai.net/why-china-makes-our-electronic-products-its-not-just-cheaper-labor
https://www.economist.com/news/leaders/21646204-asias-dominance-manufacturing-will-endure-will-make-development-harder-others-made
BY MAKING things and selling them to foreigners, China has transformed itself—and the world economy with it. In 1990 it produced less than 3% of global manufacturing output by value; its share now is nearly a quarter. China produces about 80% of the world’s air-conditioners, 70% of its mobile phones and 60% of its shoes. The white heat of China’s ascent has forged supply chains that reach deep into South-East Asia. This “Factory Asia” now makes almost half the world’s goods.
And so the answer is to run and hide behind a trade barrier?
You really think that's the right strategy to hold back a changing world?
If we really think manufacturing electronic components is so important why don't we train the engineers and build the factories to be the best at it?
Did you ever consider the possibility that companies like Apple think they get better returns on their investment by researching, developing and marketing new technologies than by stamping out widgets?