content: you would have a camp, but it wouldnt make sense to make so many and store prisoners there. the people who invented the first combat rocket, the first jet fighter, etc would have an efficient system for carting people away in trains to a "camp" then just killing them by the trainload and sending the train back. as you said, there would be no reason to build the camps, feed the guards/prisoners, dedicate resources there in the middle of a war, etc. also doing it quickly would be 100x better because people have less time to change their minds or catch feelings compared to if you drag it out over years my best guess, they built the camps to relocate those people (only half were jews) out of the nazi empire at the end of the war. when the war started being lost, and the empire was crumbling, so did the camps. supplies were rare, the lines were bombed, and even then if your directive was to exterminate all prisoners, you would at least do it before your base was captured, but they didnt