The Causes of the Holocaust Post World War I Germany saw difficult times. Germans were searching for a reason to blame someone for their problems and extremist groups such as the Nazis provided a focus for the German people. Some historians will argue that extreme nationalism was the cause of the Holocaust because of the power of the Nazi party. While a large part of this is true, Germany's anguish after World War I sent people looking for reasons to blame someone or something for their burdens, Germany's humiliation after World War I, its dire economic situation, and antisemitism all came together t