Hat tip to David Heleniak for digging this up.
These maps were originally taken from Erik von Kuehnelt-Leddihn’s “Liberty or Equality.” K-L was an aristocratic Catholic liberal-monarchist who argued that Nazism was the direct outgrowth of the influence of Protestantism in Germany, particularly the millenarianism and apocaplyptism of Protestantism, complete with Luther’s tirades against the Jews. His arguments were not dissimilar to those of modern liberals and leftists (and the European New Right) who argue that Christian intolerance and classical anti-Semitism planted the cultural seeds out of which Nazism grew, although Kuehnelt-Leddihn obviously lacked the secular or neo-pagan bent of contemporaries who make this argument. Kuehnelt-Leddihn also argued that anarchism took root the most easily in Catholic countries such as those in southern Europe and Latin America. It is interesting that both Nazism and modern Totalitarian Humanism have had their greatest appeal in historically Protestant countries.
As shown by the election figures for 1932.