No. It's not that easy to move. Factories don't work in isolation. One of the major advantages of China is that all the suppliers are located very close to each other so you can get very fast turn arounds. Some people have the mistaken notion that it's only because of cheaper labor, which is only partly true. But in the area where a lot of the manufacturing is happening, Shenzhen, labor cost isn't that cheap because the cost of living has skyrocketed.
It's similar to why tech startups largely start in or move to Silicon Valley. It's the ecosystem of VC, pool of talent (Stanford, Berkeley, the other UCs, and tech companies), and existing large tech companies.
This all can change but not overnight.
Wendover Productions did a nice video on manufacturing in Shenzhen: https://www.youtube.com/watch?v=E7Jfrzkmzyc (Highly relevant to the big picture and issues around the tariffs)
This is similar to the the original dynamic that allowed Silicon Valley to be Silicon Valley and produce ICs, then computers, home computers and game consoles, etc.
What would the benefit be to the United States for production to shift to Vietnam? Simply to avoid it being done in China? I thought the idea was to increase domestic production.
Wouldn't that lead to the same trade deficit Trump decries, and thus new sanctions?
A production move would be expensive, and presumably hasn't already happened because of cost differences between China and, say, Vietnam. You might be able to keep the cost increase down, but not non-existent.
Wouldn't the downsides of tariffs actually only remain until production moves to say, Vietnam, etc.?