Most materials for actual production are *imported* to the US. For Us made products, the consumer now pays the tariffs.
Look at US Steel, roughly a quarter of steel is imported, for the production of the rest, the US imports all that is needed.
For producing food, the US is *reliant* on importing billions worth of nitrates in 2025, and 65% of the work force are foreign workers.
The US imports too many of it's base need products, doesn't produce enough of it anymore. But, it's not like you can just start up production of something you shut down, it takes a bit. Need a new copper mine? Yeah, that will take 4-5 years.
Want to replace the farm workers? Sorry, I don't know to many US citizens that want to work on farms as farm hands earning bare minimum.
But, most hilariously are the building of stuff, like, say, Ford, want to build a car engine. Engine is assembled in the US, shipped to Mexico for hose installation, then over to Canada for electronics installation, and the finally, shipped back to the US, to put into the chassis, but wait, we still need the actual glass installed, that is made in China....
I am not sure how anyone can believe this is a good idea for the average citizen of the USA.
How anyone can think this is a winning situation for anyone, is, rather ludicrous.