Edited sentence: Biracial children notoriously suffer from identity crises and ostracization (see tragic mulatto).Blacks are also more aggressive than other races; although they are 12% of the population, they commit about 80% of violent crime.If race mixing continues, everyone will be the same color, thus harming genetic and cultural diversity.In 2005, over 30,000 white women were raped by blacks, while less than 10 black women were raped by white men.Intelligence research has shown that black Americans have a median IQ of 85, which is mildly retarded.It causes tension due to the natural reaction each and every person has to seeing a person of their own race and opposite sex involved with a person outside of their race.Miscegenation is known to have a variety of negative effects on society.There is also concern about the consequences of mixing with certain races, particularly blacks