Thanks for the question. Three reasons:
(1) Much like a carbon tax, when the economy becomes accountable for an externality (risk in this case, rather than carbon) it is priced in at every level, ending with consumers, whose demand is price-sensitive. Not all consumer goods of the same class will be impacted equally, creating a natural price advantage.
(2) Once the economy adjusts to these new risk-adjusted prices, POTUS can always offer clemency for specific goods and industries to respond to global supply shocks, providing a large buffer for the now-adjusted American consumer.
(3) Narrowly: it is exceedingly unlikely we won't see production onshoring in any capacity like you suggest. Economic analysis of the first-term Trump tariffs, for example, did indeed find production onshoring.
Sure there will be some onshoring, but does it make more sense to onshore or pay given: 1) the instability of Trump's decisions, see Ukraine or Canada 2) you would have less economy of scale because you wouldn't sell any of your super expensive goods outside the USA 3) if the machines you need aren't produced in America they'd have tariffs too 4) the next president could make the tariffs more favorable. You also haven't touched unemployment (or lack thereof) yet.
(And by the way, if tariffs stay, brace for deflation due to waiting until after the election in 2028).