That was just the acceptable public face of Nazism.
That's the thing though, that same contradiction between the acceptable public face of Nazism (for example “every animal has the right to live … this is really murder” as per Himmler) and them actually legislating, or planning to legislate, for less of them to exist (banning or severely restricting meat production) is seen here where the goal of stopping livestock animals from existing is argued on the basis of said livestock animals having moral qualities.