The Nazis built the death camps as a method of improving the cost-effectiveness of their campaign of extermination. The Israelis are not concerned with cost-effectiveness as their implements of genocide are provided to them free of cost by the USA.
Meanwhile, Alabama has literally began using gas chambers.
Most death camps didn’t start out as death camps either. They started out as internment and labor camps at the start of the war, and were left to fester with starvation and disease as the Germans got stretched thinner. Towards the end, in 1942, the Germans agreed on a policy of mass killings in the camps as a way to cover it up/destroy the evidence when it became more clear they were losing against the Soviets