Of course the refugee crisis is a challenge. Resolving it will take time, money and effort. But Germany has all these resources, and can manage the crisis without giving up its civilized ways. Instead, however, a pub brawl atmosphere is spreading through the country. If things go on like this it will be engulfed by the same brutal climate it last experienced in the 1920s, that rough German decade that paved the way for the most brutal decade in the history of the world.