A commonality of skin color and associated facial features is as nothing compared to the fact that human beings of all races share the faculty of reason. The former may allow for an interesting group photo once in a while.
The latter is what underlies the accumulation and application of knowledge and gives to the members of all races the ability to produce the goods and services that the members of all races need and desire.
Every day the members of all races benefit from the work of the members of all other races in that greatest phenomenon of voluntary social cooperation, the division of labor and capitalism.
For elaboration, read my Capitalism. It’s available in Kindle, hardcopy, and a two-volume paperback edition at Amazon.com: george reisman, capitalism a treatise on economics