My under standing of what Trump is saying, regarding Tariffs, is that he will and does not use them in a traditional way, he uses them as threats….So when the the French wanted to and did put a tax on some US goods…I forget which….Trump called up Macron and said, if u do then I will put a 100 % tariff on all French wine and Champagne, coming into the US and if u still don’t take off the tax, I will double the tariff in 1 month……This was on a Friday …all starting next Monday…..
In other words he uses them to force Co’s/countries to do as he wishes….and as the US has been a massive dumping ground for decades, there is much to do…..like the EU takes very few US cars, same with Japan…both while selling vast numbers in the US…