What's wrong with the Talmud? Talmud is a religious scripture such as Bible and Quran. All three contain many crazy things about what we atheists shake our heads. But for the believers, it makes pretty sense. They have a completely different understanding of that stuff as we have. Misunderstandings are always a big problem. Mass extermination was the final option. The Nazis first collected their Jews into Ghettos because they planned to send them overseas (to Madagascar, Palestine, whatever). But then all these plans failed. They decided, out of necessity, to kill all Jewish prisoners. Thus, Auschwitz and the extermination camps of "Action Reinhardt" came into consideration.