It is always a shock to upper-middle-class urban liberals when they venture into what they call "other cultures" expecting to find the sort of freethinking, unquestioned acceptance of the ideals they themselves hold, only to find out that minorities are much more socially conservative than upper-middle-class urban liberals. (And black or not, the young woman in the story is more a part of white, upper-class liberal culture than she is American black culture, or else she would have known full well what to expect when she "came out" to her fellow students.)
(Via Sondra K.)