We must necessarily suppose that the development of the negro and white proceeds on different lines. Simply put, it has been removed because it did not conform to the agenda of the government and media. Please remember that until the 1960s, racial differences between the White and Black races were almost universally known and accepted. These are the biological facts of race. It is not hatred to state these biological facts that the White race possesses more intellectual capability than the other races any more than it is hatred to state that humans possess more intellectual capability than animals and some animals possess more intellectual capability than other animals.
Science has nothing to do with hatred, but with reality.