Alon Ziv presents evidence from academic journals, world history, pop culture, and recent census counts to prove that interracial individuals have significant physical and mental advantages. From the sex lives of bedbugs to the remarkable feats of professional athletes, he illustrates how biology influences every aspect of our lives and how the right combination of genes can make all the difference.
I have heard similar views before, and I have three main objections to this hypothesis. If you have read the book, and these objections are covered, feel free to comment.
My first objection is that humans tend to prefer individuals with physical traits similar to themselves. Research on human marriage patterns has established this fact. Therefore, people with average features will tend to be higher rated, because they are more similar to a larger number of people than outliers of phenotypic space. Hence, we would not expect that interracial people who inhabit an underpopulated region of phenotypic space to be highly rated from a group of judges drawn from the population as a whole.
My second objection is that interracial relationships do not occur uniformly in geographical and social space. It is also known that people's attractiveness and health also varies with geography and social class. Therefore, to assess the qualities of interracial individuals we must compare them against uniracial individuals from the same parental background, and not the general population of a particular country.
Thirdly, interracial individuals represent a wider range of phenotypes. In a sense, they represent novel chance combinations of genes from genetically distant populations. Whereas trait complexes are expected to be mostly harmonic within racial groups (since the dysharmonic combinations have been partially culled by evolution), traits inherited from different races may clash, presenting a dysharmonic phenotype. They may also match in an original way, including individuals of great beauty or other qualities. However, we should not judge the entirety of the interracial distribution by its right tail, e.g., the famous athletes, or celebrities of interracial background that we may be familiar with.
Mixed Media Watch doesn't seem to like the book:
I feel like all of my recent posts have been about things I wish didn’t exist. :| I can’t believe this book is actually hitting the shelves. I remember being contacted by the author years ago in my capacity as Swirl’s Executive Director. Once I heard his premise, I refused participation.