The books, in general, portray racism on the part of any character as a negative trait and undesirable.
Genre review sites noted both positive and negative traits in general.
And keep from equating people with their negative traits.
According to them, human manifests more and more negative traits.
However, when this effect is applied to perception of people, it is the negative traits that stand out.
According to the charter, Jewish people "have only negative traits and are presented as planning to take over the world."
Turtledove also makes connections between the negative traits of humanity and the Race.
Or is it a negative trait that humans have selectively bred for?
Their 24-hour-a-day exposure to the mother or stepmother meant they had more opportunity to experience her negative traits and not the father's.
Although, the way the dice rolled, he would likely have ended with all of their negative traits rather than the desired ones.