Nazis march in large, noisy, goose-stepping lines. So do retards. Nazis like to lock people into small rooms and gas them. Retards like the smell of their own gas. A Nazi likes to salute with his forearm extended and fingers pointed straight to show his unwavering passion and allegiance.
Nazis burn books.
Retards try to set their farts on fire. Many retards rinse off the urinal cakes at Denny's. Nazis want to exterminate all those non-Aryan people. Retards want to exterminate all those invisible people wielding sharp forks. Nazis traditionally speak with a thick, Slavic accent.