I have previously posted in this forum that I believe that there is an genetically-based IQ difference between races. To my mind, it would be more remarkable if there were not. There are clearly genetic advantages in other areas - for instance, blacks make better runners and whites better swimmers (just watch the next Olympics if you doubt this). However I think this:
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He said he hoped that everyone was equal, but countered that "people who have to deal with black employees find this not true"
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is retarded. You would have to work with a ton of people to be sure of this, and even then, utility at work is not a good measure of IQ (it mostly measures laziness, etc).
If you want to read a concise and fairly light argument for IQ differences between races, try
The Inequality Taboo, by Charles Murray, one of the authors of the notorious "The Bell Curve". (The annotated and referenced version is
here).
An expert's opinion on whether something is true should definitely influence your own beliefs. However, racial IQ difference is in the domain of psychology (or "psychometrics", if you like) and statistics, not genetics.