Have you never asked yourself why so many people of this one religion turn out to have "psychological problems"? What are the chances of that statistically if, as you seem to suggest, religion has nothing to do with this?
Next, this person is trying to disassociate their skin color from their opinion, and in response you are insisting on essentializing them on the basis of biology. Have you considered how close this puts you to people you claim to abhor?