That's a great explanation of the direct impact of tarriffs for a business like this.
Without introducing the tariffs as a long term position businesses will be less inclined to do the capital expenditure to manufacture in the US, even for businesses within the margin (mostly manufacturing with high energy inputs and low supply chain requirements) where it would be economical.
Just based on the words that Trump actually says and writes, I find it difficult to come to any conclusion other than Trump strongly believes that trade imbalances are unfair, that tariffs will reshore manufacturing, and that reshoring manufacturing will make America “wealthier.”
But if Trump is bluffing, it’s not clear there’s anything these other countries could give that would satisfy Trump. Vietnam could remove all tariffs against the US and in all likelihood not even make a dent in their trade surplus. It’s very hard for a small, developing country like Vietnam to import lots of stuff from a rich, expensive country like the US. Many of the countries whacked with massive tariffs by the administration already have very open trade policies with the US. What is there to negotiate?
In fact, it's the opposite. Those industries are much more polluting per dollar GDP created, and that externality is something you are happy to not have on your own soil.
1. That's assuming that shipping, warehousing, transport, etc. do not rely upon foreign imports, including services. Chances are that more than one link in the supply chain will be hit either by the US tariffs or by the actual reciprocal tariffs from the other end [1].
2. That's also assuming that the tariffs will not have an impact on the sales of the company, which might adapt either by decreasing its margin (to increase sales) or by increasing it (either to try and compensate for lost sales or because it feels like the right time to hike prices).
[1] We shouldn't let ourselves be fooled by the word "reciprocal tariffs" used by Donald Trump. All these numbers are bogus. In January, EU tariffs on US goods were about 2-3%, not 39%, just as US tariffs on most EU goods.