Trump is not that hard to understand.
There are only a few things he really cares about, but most prominent among those when he "decides" what action to take is how it will play out in the media for the next news cycle. That's the way it has been with him for over 8 years now but if you accept that you understand the mechanism by which he takes action.
Right now, he thinks slamming down tariffs left and right makes him look "strong" and "decisive." Not like those wimpy ass liberals who try to use diplomacy for things. His PR organ Fox News is crowing about all the nations obsequiously lining up to negotiate (i.e. sue for terms of surrender). The rubes are buying it so he will keep doing it. Economic expertise, much less sound policy, has nothing to do with it and never has.
Just a short while ago the Trump team was confidently forcing a plan for SSA office closures. They had a list and they published it. Guess what it did NOT play well in the media. Trump was getting trashed and he couldn't blame it all on Musk. None of them have enough education to know what the "third rail of American politics is." Then guess what. They are now pretending they never said they were going to close offices. That was just a figment of your imagination and you do not question the Ministry of Truth.
So it will be the same with the tariff project. It will play out that way. Right now they are trying to spin the chaos in the equities markets as just a necessary but temporary thing, then we will all get rich. The rubes are buying it for now, but when the news cycle sours on them and they lose control of the media narrative the tariffs will melt away like the spring snow. They will claim the outcome was always what they intended -- to show the world who is boss. They will pretend they will got what we wanted. The idiots in red hats will buy it.
It will be completely lost on them what the real consequences are. They will just blame it on Biden if they are forced to notice.