You talk a lot about Economic Theory considering you completely ignored one crucial detail: consumers won’t buy it if the price gets high enough

not many enough would pay $99 for a phone cover), and some things will never be able to be produced cheaper (no child labor, expensive adult labor).

I seem to have mentioned this.

This could effectively become an Embargo, and it should because Fuck Chinam

If that is the case it’s kind of an own goal; China is still free to trade with anyone, including US consumers that pay more. It’s just the US consumers gwtting worse access to thw products they want. Closer to a self embargo, no?

It’s like a much more expensive “Buy American” campaign, only it also makes the US utterly untrustworthy in any future trade deals or investments.

US Consumer will still buy it if it is essential/critical. If it gets high enough they will travel out of US to buy it. Example people travel overseas for medical treatment/surgery/medication/products. Because even after including ticket price and hotel stay it is still cheaper overseas than in US. It might even open up new smuggling trade. Everyone bags are going to be checked more thoroughly in US.

Because of how cheap thing are outside US people may start traveling to SEA/china/Samerica and etc more for shopping, boosting their travel industries and economies. These countries can charge special (tax) on american tourist to collect more money, it will still be cheaper than buying in US.

You need to learn how to put on your shoes.