Obama during affordable healthcare act discovered they were very dependent on other countries. This was very visible during covid and the 'supply chain' breakdown.

Obama started a process, Biden and Trump are in lockstep. They've reduced this issue by about 1/3rd by 2024. Trumps' tariffs are almost certainly going to be upheld by the supreme court.

This has led to a reshoring boom and trillions of new investment in the usa. Estimates seem to suggest only a marginal improvement of about 3%, so roughly another 20% improvement.

But fixing the very broken trade balances for the USA has long term benefit but it will result in a strong USD, but weaker reserve currency. Obviously the USA is rapidly moving away from bretton woods and being the world police.

They will drop below 50%, but nobody else is there to pick up the reserve currency crown. They get all the benefits of seignoiorage and very little of the downsides for decades.

Their dominance is over but they clearly saw that the cost-benefit was not worth continuing into the future.

Meanwhile, since they stop being the world police and reshored the important things. They dont care about the stability of global trade. Instead their super carrier groups will move to poke their nose only in their own business. You're going to see a fast shift from the usa being hated to being loved over the next 10-20 years.