Yet you can build those supply chains easily in Germany – all the factories to produce the parts you need are already there.

Germany, in fact, is in the business of producing the machinery that is then used in other countries to produce your phones, tanks, ice cream cones.

There is a huge supply chain in the US for very complicated goods due to defense procurement. It is not cost optimized (even close...) but it exists. It is a falsehood that "we don't make that stuff here anymore" for virtually any value of "stuff".

It would take a relatively small tweak to import duties to make most types of outsourcing uneconomical.

Supply chains for simple products such as a yoghurt can actually be quite complex.

https://erdbeerjoghurt150g.files.wordpress.com/2008/06/joghu...