The hypothesis is that there may be a higher percentage of impulsive individuals within different groups. You then either lie or simply don't understand the difference between that hypothesis and the ridiculously stupid idea that there is a "black gene," which predisposes all black people to impulsivity or "rascality." Maybe you really can't differentiate those two propositions. If you had intellectual integrity of any sort, you'd answer my questions to you, one of them being whether you seriously believe that an equal percentage of individuals in the different racial groups have genetic predispositions to heightened impulsivity. You won't answer that because you can't think of a single other thing that is distributed equally among different racial groups, and, besides, if you started to acknowledge how unlikely it is, you'd then have to reconsider your entire assertion about the predominance of environment in antisocial behavior, and think about the scary, uncomfortable implications that might carry! "Don't go there," even if it might lead to truth! Margaret Sanger! Eugenics! Francis Galton! Nazis! Hitler! KKK! Stop! Halt! Nothing to see here!