This is a very Manichean and childish view of human nature. We are not all evil nor all good. North Koreans are brainwashed (just like Sinkie sheep). That's all. They are not some kinda subspecies. They are humans, just like us. Hath not a North Korean eyes? Hath not a North Korean hands, organs, dimensions, senses, affections, passions; fed with the same food, hurt with the same weapons, subject to the same diseases, heal'd by the same means, warm'd and cool'd by the same winter and summer, as a South Korean is? If we prick them, do they not bleed? If we tickle them, do they not laugh? If we poison them, do they not die? And if we wrong them, do they not revenge? If they are like us in the rest, they will resemble us in that.