American stereotypical male? *updated with stats link*

I had a mild argument with Rachel's boyfriend about his views on blacks. He thinks that he isn't rascist yet he makes statements like 80% of crime in the US is by African Americans. I was dumbfounded to hear such an outrageous statistic that he clearly fabricated. And then he mentioned that the US is successful because the Christian God was great. I couldn't believe that these statements were coming out of the mouth of an educated college student. No wonder is he so hated at college. If I was black, I would be terribly offended. I have met my first cultural imperialist. Here is what cultural imperialism means in Wikipedia:

Cultural imperialism is the practice of promoting the culture or language of one nation in another. It is usually the case that the former is a large, economically or militarily powerful nation and the latter is a smaller, less affluent one. Cultural imperialism can take the form of an active, formal policy or a general attitude.

He was also extremely enthnocentric. Also from Wikipedia:

Ethnocentrism (Greek ethnos ("nation" + -centrism) or ethnocentricity is the tendency to look at the world primarily from the perspective of one's own culture. Many claim that ethnocentrism occurs in every society; ironically, ethnocentrism may be something that all cultures have in common.

How do you think I should have approached his arguments? Ridicule, patience, mockery?

*updated*
I found statistics about race and crime.

Homicide trends in the U.S.: Trends by race

[Listening to: Smelly Cat Medley - Phoebe Buffay and the Hairballs (feat. The Pretenders) - Friends Again (2:26)]