In the same way it’s subjective to believe that sending a platoon of armed soldiers into a village of dirt poor peasants, then ordering them to murder everyone in the village is a no-no might be “subjective”. Yeah, there’s a portion of our species who will resort to remarkable feats of intellectual contortion in their efforts to justify such things
Most folks recognize that our capacity for forethought and self-possession are what separates human beings from the animals though, and that rewarding those who behave contrary to these standards undermines the very notion of civilization