6. Europe - Not Any Longer
In 1920 Europe was home to over half of world Jewry and many of its most creative, dynamic communities; today it contains barely 10 percent of the world's Jews. The decline of Western European Jewry is caused by a confluence of factors. The least lethal threat lies in assimilation, which impacts roughly half of all European and American Jews. But far more unnerving has been rising anti-Semitism.
Some 90 percent of European Jews, according to recent surveys, have experienced anti-Semitic incidents. Taken together, the forces of history, politics, anti-Semitism and migratory patterns spell the likely demise of Judaism in Europe, particularly its more secular elements. The once widely spread tribe is rapidly concentrating in North America and Israel, together home to roughly 90 percent of all Jews.