Baker's book Race was endorsed by Peter Medawar, the Nobel Laureate. Those guys know more about biology than you ever will.
He makes the classic flaw of the eugenicist, that of thinking he is better than others and therefore his traits should be passed on.
The mistake Darwin made was in thinking they can be passed on. He thought any variation he liked was germinal. Descent of Man is based on this error. Darwinism is based on this error. Eugenics is based on this error.
Arafat was a Nobel Laureate too, it doesn’t impress me. Anybody can be wrong, and Baker is wrong.
Sorry that’s not an error. Every farmer for the entire length of recorded human history knows that traits get passed on. The entire concept of purebred animals is built around the knowledge that passing on traits is the truth and what happens. The fact that you think that’s in error shows that you simply don’t have the knowledge to actually be participating in this discussion. Lurk it and read, you need a lot of education on this matter.