Don’t know about the book, but the review misses two very important points.
Human evolutionary pressure since becoming intelligent has primarily operated between groups, not individuals. Losing groups were wiped out.
Or, more accurately, the males were. The females were generally kept alive as secondary wives for the victors.
So evolutionary pressures acted primarily on groups of males. IOW, the primary evolutionary pressure through most of human history was to be on the winning side of wars.
The genetic evidence shows this very clearly. The male line of inheritance is much less diverse than the female line, because of all the male lines that were wiped out when the females were allowed to live and breed.
OTOH, the Jews were able to develop despite being generally persecuted for the past 2,000 years.
Unless 2,000 years is too short a time to make much evolutionary difference.
You are talking about group selection, which has also been out of favor in the scientific community for a long time (in my view since it has been seen to have unpalatable implications).
My guess without having read the book is that Wade will probably touch on the topic.