Nazis think they should only breed with other Nazis. Retards can only get some with other retards. In 1936, Jesse Owens humiliated the German Nazis and Adolf Hitler in the Berlin Summer Olympics by outrunning the Aryan Germans and taking the gold. In WWII, the German Nazis almost defeated Great Britain by bombing them in air raids. Every night, the retards of the house get together to drop slinkies and rolled-up socks down the stairs.
Nazis often walk with a swagger stick.
Retards often walk with crutches. In the 1930's and 40's, thousands of people joined the Nazi party in Germany out of nationalistic pride. In the 1960's and 70's, thousands of people declared themselves as retards to avoid going to Vietnam. Nazis created mass graves of exterminated Jews in Eastern Europe. Some retards keep mass collections of earwax under the matress.