Too many what-ifs.
For that foreign washing machine to cost 20% more, it'd have a seriously larger selection of bells and whistles.
Most Americans enjoy a certain standard of living. To get that, they need to be paid decent. To get that, products need to be sold at a profit large enough to keep them employed. Which is why many companies outsource products, like cars and trucks, to Mexico and Canada. Even with shipping, the profit is somewhat larger per item than can be manufactured in the US.
The Chinese are not stupid ppl, not with internal competition so cut-throat. They'll take a 10% loss on profit per item to outsource final shipping from Korea and claim 'its Korean, so no 25% tax on me!' Trump won't be able to stand on that, and then turn around and promote all those American made Ford cars and trucks.
There is no easy answer, all I can say is at least he's trying something, not just sitting back and maintaining the status quo. Whether it works out or not won't be seen tomorrow, it'll be something the next President will have to deal with