1) When the French pilots put an Airbus in level flight into a stall and then flew it into the ocean, I don't recall anyone here making the general proclamation that "French pilots can't fly."
2) The PF on the Asiana flight was the junior pilot in type conversion training, and he was under the supervision of the trainer sitting on the right side, so here there is no issue of "Asian FO's not able to speak up against the captain." If the PF did anything stupid, there would be no hesitation by the trainer to speak up and do something about it.
It seems we have an issue here for basic airmanship, which have come up in the AF accident (European), the Colgan accident (American), and maybe now the Asiana accident. Some people here love to talk about crappy Asian pilots who can't stand to lose face. Is that really helpful? I don't think so.
To the people here who say, "there is no place for being PC in air safety," I ask, really, how is focusing on ethnicity helping air safety?