MASS-MURDER AS LOVE OF ONE'S PEOPLE

 In a speech delivered to SS officers and Nazi officials at Posen in October 1943, Himmler declared: “We had the moral right, the duty to our own people, to kill these people who wanted to kill us.” 

Himmler concluded—speaking about Final Solution: "We can say that we have carried out this most difficult task out of love for our own people.”

But warfare, like genocide, is always generated based on moral values: saving one's people; rescuing one's people. Nothing whatsoever to do with "biological aggression."