Two weeks of controversy have caused consumption of Kanye West’s music to drop precipitously. According to the latest data from Luminate, albums by Kanye West (who now goes by Ye) are down 23% (through Oct. 20, as compared to the previous week) and airplay (spins on radio) has dropped off to the tune of 13% in the U.S. On some stations, like Los Angeles’ KIIS-FM, the rapper’s rotation in the last week went down to zero. In every monitored category, including physical and digital sales, programmed and on-demand streaming, West has seen some losses domestically. Worldwide, West’s sales have declined...