This pic is the slam dunk end of this whole debate.

The homicide rate of blacks in the US is right smack-dab in the middle of the distribution of black countries in Africa.

What possible explanation is there for this other than genes? These people do not share a culture. They are not affected by the same societal issues. The only thing they share is genes.

The homicide rate, at the population level, is a result of genes. This proves it.