EK we take pilots from all over the world. We have NO mainland Chinese pilots. I know I wouldn't fly china southern. You pay for what you get. I go to Canton often. The food is rancid, can only imagine what it's like onboard
To be fair most Chinese pilots are bonded to their airline for long periods of time. Add to that coming from a Communist country where freedom of movement is restricted.
Whilst I wont be flying China Southern anytime soon its not like they are crashing aeroplanes every year..........that we are aware of would be the caveat.