China doesn't have to ship parts across the ocean. US manufacturers do, because we gave up the whole bottom/middle of the manufacturing supply chain to China de

China doesn't have to ship parts across the ocean. US manufacturers do, because we gave up the whole bottom/middle of the manufacturing supply chain to China decades ago in pursuit of lower costs. In China, the maker of the parts you need to build your product is a few blocks away. In the US, the maker is in China. And, if you need changes, you can go talk to them the same day you see a problem.