His writings and methods were often adapted to need and circumstance, although there were some steady themes, including antisemitism, anti-communism, anti-parliamentarianism, German Lebensraum ("living space"), belief in the superiority of an "Aryan race" and an extreme form of German nationalism.
The resulting outcry across the United States led to a number of antiwar demonstrations—it was at one of these demonstrations that the National Guard shot four protesters at Kent State.