Just so you guys have some numbers for your discussion:
This is one of the more recent social distance surveys from 2005 (US). Social distance in this context is a scale that measure how close people of a certain ethnicity do want people from other ethnicities in their near vicinity. The best possible score is 1, the highest 7:
As close relatives by marriage (score 1.00)
As my close personal friends (2.00)
As neighbors on the same street (3.00)
As co-workers in the same occupation (4.00)
As citizens in my country (5.00)
As only visitors in my country (6.00)
Would exclude from my country (7.00)
What is striking that there is no entry over 2, although I need to admit that this survey only has been conducted among college students.
Anyway, for the blacks:
Blacks are indeed less liked than the "other ethnicities" overall, excluding whites. Basically every member of a minority that isnt White, African American, American Indian, Jamaican, Muslim, Puerto Ricans, Hispanic and African has a lower social distance to "Other ethnicities" than black. Out of those that DO like blacks more than others ethnicities, only Africans, African Americans and Puerto Ricans show a somewhat significant difference in social distance to blacks (>0,1) compared to other ethnicities.
One of the reasons for that might be a scapegoat behaviour. Ethnic minorities that try to settle in the US typically have a hard time being assimilated into society, but history showed that ethnic minorities who lived out a prejudicial behavior seen from the dominant group, had an easier way of adjusting and assimilating into society. The dominant groups of whites however, as you can see in the social distance statistics, have overall long forgotten to hold a grudge against blacks, and view them as the most assimilated of all non-white ethnicities.
I guess its just that this perception, of whites disliking the backs, still lives on. And therefore projecting that scapegoat behaviour from other minorities onto them.
Of course you still got racial slurs and behaviour from whites, but as the statistics showed, whites have a way closer social distance than what people might perceive. There is still the caveat with this survey being taken among college students, but thats the only thing I can offer right now.