I agree, racism is usually contributed to whites, with a between-the-lines message that other races are either untouched or justified with their racism. In fact its often the opposite, as among whites (at least some) there is a lot of consciousness about racism, while among some others racism is something natural and obvious, hence most difficult to spot. In other words, racism among whites, due to its pejorative character, is usually hidden, rationalised- and contrary to intention- visible, racism of other races is upfront, open and natural, so its labelled as something else- 'preference for own culture', 'traditionalism', ' conservatism' etc