Last year I wrote an article on the birth of a new business model—E-commerce retailers shipping directly to U.S. consumers from their warehouses in China. The report, “ Retail Competition, direct to you from the other side of the world ,” focused on Shein , a Chinese women’s fashion e-tailer. Shein’s entry to the U.S. market was meteoric. As Bloomberg News put it in its article, “ How Trump’s Trade War Built Shein, China’s First Global Fashion Giant ,” Shein ended Amazon’s 152-day streak as the [most downloaded shopping app] in the U.S., a remarkable feat for any seven-year-old clothing...