Not the least because the holocaust happened late in the war. I underdstand Hitler's original plan was to exile those populations [1], and the turn of ww2 force

Not the least because the holocaust happened late in the war. I underdstand Hitler's original plan was to exile those populations [1], and the turn of ww2 forced him to come up with another plan. That is still ethnic cleansing but not of the same degree of horror. [1] https://en.wikipedia.org/wiki/Madagascar_Plan https://en.wikipedia.org/wiki/Madagascar_Plan