1. If you are as educated as you are acting, how in the hell are you possibly arguing that there are not different populations on this earth? It is obvious to anyone over five years old that people are different in different areas of the world, and there are heritable traits that have become pretty standard to groups of people. Northern Europeans are white in general. Africans, for the most part are black. I don't understand why you feel the need to bring up pigmentation percentage. It is asinine to say that you think Europeans and Africans have the same skin color, even if you are just being a dick about it. 2. Let's not call it race then if you do not think that race exists, or don't like the word. But how do you explain the difference in heritable traits of on group of people vs another? How do you explain an isolated group like the Australian aborigines that were isolated for around 40,000 years and are not closely related genetically to any other modern humans? How do you explain Africans not having Neanderthal DNA of we are all supposed to be he same? Literally the rest of the world shares up to 2% Neanderthal DNA. If not race, population, ethnicity, then what shall we call these distinctions? 3. Australian aborigines are a race that can be pretty clearly defined as those people who are native to Australia before other people arrived there in modernity. Their DNA has been proven to be most closely related to Africans who left Africa nearly 75,000 years ago. They were isolated there for tens of thousands of years, developing traits that suited life in the deserts of Australia, their skin producing more melanin to combat the sun being one of them. Many African people are the same way, obviously there are many different groups in Africa, but a lot of Africans are tall and lanky because it was better for staying cool in the hot sun, an enhanced cooling mechanism for their bodies.