A war within the black community part 2/2?

In regards to my previous entry. My question is simply when will the "N_ggaz" within the "black community" realize that they are only hurting black people in general by establishing and reinforcing stereotypes. I have been to Africa, Caribbean and even in Canada and there are a lot of black people but the "N_ggaz" are virtually non - existent - but you come here to the U.S. and they area dime a dozen - why so?