Frankly the case is closed but resources play a factor in MCU’s examples. Star Wars? The norm is genocide in every canon, even in the Disney one we have people who experimented on infants, tortured children and others, sex slavery, normal slavery being common occurrence, sadistic assassins and minimum one omnicidal maniac. Keep in mind that is the Disney one which is if anything lighter than Legends, even in as a whole Star Wars genocide of entire worlds isn’t that uncommon by military leaders. No with that said I’m locking this.