Trump's reciprocal tariffs:
1) Impose hundreds of billions of dollars in new taxes on Americans without public/congressional input
2) Are based on secret calculations that have little, if any, connection to actual foreign trade barriers
3) Ignore all US tariff/non-tariff barriers, which in some cases are quite high
4) Are justified by a "national emergency" that reflects a total misunderstanding of how trade deficits work
5) Disregard US trade agreement commitments, including ones made by Trump himself
6) Will make us all poorer, and likely do real & lasting harm to the US economy (incl in manufacturing)
7) Embolden our adversaries around the world
And those are just the ones off the top of my head.