Wouldn't a more effective US strategy against China been to get the EU, Japan, and South Korea in on the tarrifs as well? Might as well throw in Canada and Mexico as well on account of being NAFTA partners. That would account for all of Chinas major trading partners. Japan and SK might have been difficult, but a combined North America + EU might have done the trick.

Maybe the Trump Administration tried this, but I find it unlikely since this Administration opened up lambasting our traditional allies. This trade war as it stands is going nowhere. China won't budge.