Cultures as I stated in my initial post. British publicans get baffled when you tip them, Arabic businessmen bring costs to negotiations, Americans are good at service...All cultural.

"Discrimination" means the use of the brain to tell one thing from another. There is nothing morally wrong with using this power. I think hcho is plainly trying to offer the benefit of his knowledge here. The morally problematic "discrimination" is that which systematically give different treatment in such a way that innocent people are being shut out of opportunities. It is not wrong to say that Culture X is like Y, what's wrong is to then say you'll automatically disqualify individuals of Culture X for opportunity Z (C?)

EDIT: By the way, it's pretty interesting that your comment seems to justify differential treatment if based on that particularly modern folly called "statistical correlation". Are you saying that discriminating against Arabs or women, for example, is only wrong because the stereotypes are false? For that statement is absurd. There are stereotypes because certain things are true, on average, about those groups. Averages are not individual people. Prejudice is a moral problem, not a statistical error.