This is just the thin end of a thick wedge waiting for those working in China as foreign pilots. There are few nations on Earth with more rampant racism than China and they will kick you out as quickly as they can. If you go to a European airline you are used to working with people of many nationalities, cultural backgrounds and religious sensitivities. In China, that is not the case and you are just a foreigner who they hate but have to put up with until you can be got rid of. Unless you have an overwhelmingly great desire to work in China, which no one does, and you have absolutely no other choices, this is one best given a very wide berth indeed.