Here's an article of note that I think some of y'all might be interested in reading:
http://www.alternet.org/story.html?StoryID=11192
If you're too lazy to read all that, he sums it up very nicely in these lines: "After all, if one doesn't know many blacks, or personally witness discrimination, it is all the more likely that one will find the notion of widespread mistreatment hard to digest. Especially when one has been socialized to give more credence to what members of one's own group say, than what the racial "other" tells us is true." In short, the "_____ [insert minority here] takes everything too personally! Discrimination doesn't exist" thing is a myth.
He does make race into too much of a black/white thing, with almost no mentions of other minorities, but the sentiment could easily be applied to other races as well.