Thats truly shallow.
http://www.hri.ca/racism/Submitted/Author/humanrightswatch.shtml
The problem is that it all isnt as simple as you would like people to believe.
We have numerous factors that play a role. Firstly, we have trouble even getting an accuarte number of rapes even committed....we have a lack of reporting, we have false allegations, we have wrongful convictions, we have guilty but unable to PROVE or technicalities that allow guilty to go free etc.
Secondly, we do have a justice system that is heavily influenced by money and blacks are over-represented in poverty which means they are underprivilidged in our justice system since it favors those who can afford the better lawyers, investigators, expert witnesses etc.
Then we old fashioned racism that has both played into a economic disparity as well as the fact you are more likely to be stopped, arrested and convicted based on the fact you are black.
It is definitely hard to determine or quanitfy the real truths (arriving at exacts) and seperate everything and see how much is attributed to racism and the affects of our history (slavery, unequal rights and cultural racism) and how much is not. But we do know that all that does play a part.