This book is about strategy. This whole story is complicated. The previous chapter about another related book "Genetics For A New Human Ecology", was added because of its implications to future moral strategy. That book purposefully avoids certain discussions of strategy to focus on one idea, the problem of genetic load and the solution, artificial selection. This chapter is that discussion of how genetics relates to moral strategy. I reviewed what I needed to cover and saw another large aspect of human genetics in my first, difficult, book "Transition To A New Human Ecology". While it doesn't much belong in this book of the short "Genetics For A New Human Ecology", I think it is important information and fascinating stuff. So lets see if I can summarize it in one paragraph before returning to how the artificial genetic selection will effect our moral strategy.
Human civilization comes from four root sources that developed in the river valleys of the Fertile Crescent, the Red River Valley and the Indus River. Another developed in Meso-America, but had difficulty because of lack of crops and domesticated animals. Each of these civilizations were based on cities populated by different tribes that lived "in the same city", but generally stayed reproductively apart based on custom and religion. There was continual hybridization, including because of war and slavery, but they filled separate occupational castes. (The following is more about Western Civilization, which I have the most information about. This is basically from the work of C. D. Darlington and is covered in more detail in "Transition To A New Human Ecology".) The basic civil castes were peasant (farmer and herder), craftsman, scribe, priest, warrior and military based ruling class. Actually, until the time of conquest by Sargon the Great (Semitic herders), the cities of Sumeria were "ruled" by priests that directed the planting, harvest, building, irrigation projects, etc. This was followed by hybridization and various tribes would have been selectively absorbed as they fit into the civilization. The next major group they met were the Indo-Europeans, horse herders from Eastern Europe known as Dorians, Ionians, Greeks, Romans and perhaps the Eutustrians among others. They replaced the Semitic ruling cast and they too hybridized hybridized with the civil population. While there is little traditional historical record another group that is well represented in Western Civilization is the Celts. If you have a strawberry complexion, you are descended from them as well. They were important, because when they hybridized with the older tribes there tended to be social and "scientific" revolutions.
Another point Darlington made that should be mentioned is that he called "Heredity" the third forbidden subject in science. This was for good reason, because it seems that when science was applied to heredity and race, it was usually to rationalize racism and various forms of genocide. So, the story has had to be that the tribes of humanity are all basically the same, with a bit of color variation. Violate that rule and you will be drummed out of academia and polite society. The thing is, heredity must be studied and not just because the onrushing disaster of genetic load. No one knows the future or what will be required to survive. We will need all the genetic variation that humanity has to be able to adapt to the future. The descendants of temperate zone farmers dominate society now by their ability to act like machines. It worked good for farming and manufacturing. The thing is, machines are good at those skills. The way I see it, there is a caste (occupational group of many tribes from many races) that right now has little status modern society. Their temperament and skills are just not valuable, but I see them as having a key to survival in the future. Racism is dangerous, because like the present, the future belongs to the hybrid. No one knows who carries the genes that will be needed for survival in the future. We must speak of heredity now, because genetic variation is the greatest wealth of humanity.