flyingkiwi,
I don't think aviation is a level playing field; it's more to do with right place-right time. I also think us pilots are being relegated from players on the field to waterboys on the bench! (but that's another topic)
However, if you want to jack your end of the playing field up a bit I would contact and then write to the aforementioned Vice-President of IFALPA and put forward your arguments. I would also copy the letter to your local union and hope they endorse it. At least that way, should you take a job with CX and subsequently leave, you may be able to get yourself sprung from a blacklist in your home country. (I stress the word may)
I note there is no ban on interviews so if you haven't had your interview in HKG yet, grab any interview opportunities and listen to the views of as many people as you can; particularly those putting forward ideas contrary to your own. Go home and mull it over and if you are offered a job I am sure you will know what to do.
However, what I would not do is place much stock in some of the info on this website as the situation in CX and HKG is not as reflected here.
Finally, before anyone posts; I have absolutely no idea as to recruiting and interview policies of CX and to infer anything from this post to the contrary would be a huge error.
Good Luck