We regret but have to temporary suspend the shipments to USA

> importers must declare the exact amount of steel, copper, and aluminum in products, with a 100% tariff applied to these materials. This makes little sense—PCBs, for instance, contain copper traces, but the quantity is nearly impossible to estimate.

Wow this administration is f**ing batshit insane. I thought the tariffs would be on raw metals, not anything at all that happens to contain them.

You expected this to make sense. The goal is to destroy the US economy. Full stop. There aren’t many lenses that make sense anymore but this one? This one has made sense for quite some time now. Reexamining the behavior of the people in power using this lens should assist you in understanding the world we find ourselves in.

Can you justify this kind of response after other explanations have already been given?

I don't think it's at odds with other explanations. If you wanted a working tariff regime you'd make the tariffs graduated and reasonable - big enough to sway customer choices and ithus investment decisions, but not arbitrary seeming. More importantly, you'd work hard to ensure it rolled out smoothly and minimized commercial disruption so as to allow your price signals to function clearly.