Normally Trump does what's best for the ultra wealthy, but de-dollarization of the world economy appears to be good for nobody in the USA. I have no clue what they're trying to do, I suspect he's just lost it and there's nobody left to tell him these tariffs hurt his croneys too.
At this point I wouldn't be surprised if we're already too far along to save the dollar's position globally. Globally that's probably a good thing, but for any of us in the US it's decidely not.
His "math" for calculating each is surprisingly simple and not based on anything "reciprocal" https://youtu.be/j04IAbWCszg