People wanted gold for its beauty, but they needed salt in their diets to survive. Salt, which could be used to preserve food, also made bland food tasty. These qualities made salt very valuable. In fact, Africans sometimes cut up slabs of salt and used the pieces as money.
Supporters of the Nuremberg Laws would most likely also support "theories of racial cleansing," since these laws were meant to rid Jews from German public life and influence.