"Isn't Korea taking over some of these electronics manufacturing from China (who got it from Japan)?"
Yes and it is part of the normal business cycle. Japanese cars and Taiwanese electronics items are now often the most expensive on the shelves. They sell better than U.S. brands because of better quality and design.
Price DOES NOT equal long term sales success! You can not try to make American companies better by taxing their competitors.
They actually get weaker because they now take any resultant income out of the business sooner. If folks want to legislate anything it should be a reinvestment law because the U.S. companies have been too short sighted.
When they stop business planning by the quarter, and start planning by the decade or half century their products they offer the consumer will regain the market.
Not before.
When the pin-striped bandits arrived in the upper management at PacBell in 1988, I suggested that they be required to hold stock options for 5 years before they could exercise them. It takes that long for policies to have a long term impact. The bandits recoiled in horror. It was unthinkable to expect them to have to perform in a manner that caused a long term improvement in the company. They stayed with quarterly focus and snatched their bags of money as rapidly as possible. The company did not prosper and was acquired by SBC.