No, I think that personality traits are inherited. There are genes which are correlated with aggression in the phenotype. There are other genes that are correlated with the expression of black skin the phenotype.
>If you took someone who was black and raised them in a world where racism never existed, would they still be more likely to be murderers than someone who was, for example, white?
Are you asking that question in good faith? See this and tell me what your conclusions are: https://en.wikipedia.org/wiki/List_of_countries_by_intention...