"I do not believe that black men are more violent than white men." 

But the murder statistic proves they are.  We agree that the cause is not their race, per se.  And if it isn;t race, the question becomes:  What, other than race, explains the disproportionate murder rate among black men?  You say it "finding your self in certain circumstances."  OK. But what are those circumstances?  In what circumstance do a considerable number of black male children find themselves?   You say, "I think that we ought to pay attention to the circumstances that create an atmosphere that promotes, or encourages violence, or make it likely and then work to change the circumstances."  That is precisely what I have been saying.