Since 2018, Christmas—or rather, XXXmas—has made a provocative, year-round statement in an Oslo traffic circle. At its center stands a 20-foot-tall (6-meter) figure, simply called Santa—a creation that has become both a curiosity and a controversy. The striking red bronze sculpture, created by Los Angeles artist Paul McCarthy, has earned nicknames like the “Dildo Gnome” and “Santa with Butt Plug” because the object Santa holds—a Christmas tree—bears a suggestive resemblance to a sex toy. With exaggerated features and provocative humor, it’s impossible to miss. McCarthy frames his work as a…