C Darwin said:
skin color is a codominant trait, like in a pink carnation.
To me, skin color is just one of many traits of a European, and probably not the most important one. Higher intelligence is a more important characteristic.
Instead of using the misleading terms "white" and "black" it would be more accurate to say "Caucasian" or "European" and to say "negro" or "Sub-Saharan African".
There are albino negroes, and many of us after being out all summer have a darker skin tone. That doesn't really mean much.
What's more important than skin color is that Europeans have greater creative intelligence and have stronger self-control. We tend to be more monogamous, forming longer-lasting emotional bonds. Negroes are more promiscuous, and have a greater tendency toward rape, as revealed in the US federal statistics on crime. Our brains are more capable of higher philosophical thought, while negroes' thoughts seem restricted to simpler basics such as sex and survival.
In sub-Saharan Africa, before the whites came, the negroes hadn't even invented the wheel nor built any two story buildings! In some areas like Sudan that came into contact with Arabs, there were some hints of civilization. But in most of sub-Saharan Africa (the area between Guinea and Cameroon, east to Somalia, and south to the southernmost part of the continent), the people had not yet arrived at the neolithic stage.