The new regime of Chinese President Xi Jinping is to be congratulated for accomplishing the remarkable feat of making the rightwing lunatic fringe of Japanese politics look positively wise and prescient this week. Ever since large-scale anti-Chinese protests began to appear on the streets of Japan in the autumn of 2010, one of their staple claims was that Beijing had its longing eyes focused on the uninhabited Senkaku-Diaoyu Islands only as a first step toward encroaching on well-inhabited Okinawa, then Kyushu, then all of Japan.