first class and second class

Jared Diamond is a professor at UCL and a bird watcher. his bird watching took him to new guinea where he met a man that asked him "why you white men have so much cargo and we have so little?" This question drove Jared to find an answer. Jared said that its absurd to think that one race is more dominant than the other, Jared had to think back to prehistoric times because that is when there wasn't any inequality. Jared said that Africans are smart people because they can survive a life time in conditions that most men couldn't survive a day in. The first farmers were in the Middle East.  A 11,500 year old village was found in the middle east where possibly the first granary was built. All this is evidence that all races have accomplished something spectacular and that at one time in life all races were equal and that the races of todays society that are considered "less dominant" were once dominant. I think what the experts are trying to say is that each race is skilled or experts in different things and we can teach one another what we because that would benefit everyone.