Pknife:  Well-reasoned argument.  There are many factors in higher rates of violence within certain demographics.  Lack of a father and family stability is one of them.  So is lack of faith and a moral code.  So is community standards.  So is...  We are not solely biological and slaves to DNA.  We have and make choices.    To claim that "it's just biology" is disingenuous and "agenda" driven.