> The thing I can’t figure out is if he really doesn’t know how tariffs work, or if he’s just a liar. Either way it doesn’t make him look good.

The second proposition has already been proven many times over. The first is very likely also true.

> And from any reasonable analysis I’ve seen, I just don’t understand how this is going to bring anything back home. It’s just going to raise prices and cause more suffering for those who can least afford it.

It won't. I think the best thing we can hope for is that it brings economic frustrations to an untenable boiling point and either forces the administration to correct course (ultimately still costing us significantly in terms of global trade positioning) or it spurs the idiots who voted for this administration into action agains the administration.