Got a cite for this? I sincerely doubt this is true. Even a cursory glance at nationmaster for the per capita murder rate or rapes per capita debunks your claim.
There is no possible way to know that. You are just pulling this out of your ass. Such things have not been recorded throughout history, and even if the were, the current stats don’t bear out your claim.
Please don’t take this the wrong way, but how do you define the word "racist"such that you would not be included in that group? Let’s look at the text book definition:
You said you believe certain “irreducible moral failings”, that are caused genetically, are responsible for Black inferiority. Putting aside the fact there is no evidence for such a statement, don’t you think that pretty much fits the definition of a racist?