Biases are ingrained at an early age. In this example, the grandfather tries to hone in the message that there are no nice Jews; the objective of the Jews is to become the ruler of humanity- they are not creative but destructive.
This spinoff of The Three Little Pigs urges people to accumulate their savings to trade in as war savings certificates. Staying true to the story of The Three Little Pigs, the Big Bad Wolf blows down two of the houses and only the third house, made of war savings certificates, remains intact.
Col. Landa interrogates a French farmer suspected of hiding Jews. The Colonel compares the Jewish people to rats and uses that metaphor as a euphism to explain the Nazi sentiment towards Jews and to justify the Nazis' actions.