Antisemitism in Germany, 1890-1933: how popular was it?

Levy distinguishes between anti-Jewish prejudice and anti-semitism - the latter being an actual willingness to act on the basis of anti-Jewish animus,
politically or through acts of violence. From the 1890s through about the midpoint of World War I, antisemitism was not especially widespread in Germany. German Jews enjoyed legal equality and prospered economically and professionally. The German defeat in 1918 was the turning point. At that time there was a significant increase in the number of Germans willing to join or support political movements that advocated concrete anti-Jewish measures. By 1933, a large number of Germans had abandoned any commitment to the equality of Jews