Another foreigner who is an expert on how America should be run.
I don’t know if the writer is a foreigner, but her nationality has little to do with the topic. Currencies aren’t patriotic or nationalistic. And I don’t think she was trying to pass as an expert. She’s first merely describing how financial markets have behaved in the recent past and then bringing to light ETFs that allow investors to play those trends. She even mentions UUP, a dollar bull play which do well if the dollar rebounds.
The dollar is a trading vehicle, just like any publicly trade market, whether hog bellies, AT&T shares, or West Texas Intermediate crude.