Nazi racial theoriesThe Nazi Party adopted and developed several pseudoscientific racial classifications as part of its ideology (Nazism) in order to justify the genocide of groups of people which it deemed racially inferior. The Nazis considered the putative "Aryan race" a superior "master race", and they considered black people, mixed-race people, Slavs, Roma, Jews and other ethnicities racially inferior "sub-humans", whose members were only suitable for slave labor and extermination.