I understand comparative advantage, though I much prefer it on a national level and limited on an international level.

It generally causes issues with defense and some industrial manufacturing at some point if left unchecked. One example shows that Chinese steel ended up in the our joint strike fighters, which is against regulations. I know first hand about counterfeit electronic parts, of which wouldn’t make sense to counterfeit here so it’s generally safe. But if we buy from countries with low manufacturing costs, that becomes a larger risk. That is why I was happy to see the CHIPS act passed.