This is a personal concern and my views in response to alarming comments above- not anonymous slurs against an individual .
A pre-requisite for a training position in normal parts of the world is empathy. If you think racial slurs is acceptable by someone in a supervisory or training position is OK, where they are in a position to make an break and career, try a little empathy. What about your kids?
Hong Kong is not normal. It's retarded. I know of blatant racists who think they are great trainers, belittling cadets with 150 hours, when they themselves have struggled and shown massive levels of insecurity in the upgrade programme. There's even reports of the gentle, friendly wrap on the knuckles of a cadets over here at KA. Wow, that's going to look great for expat pilots if it ends up in Apple Daily. So on one hand, the bullying is probably insecurity and you can see that a mile off with some of these guys, what about the others? The odd sociopath trainer desperate for management and for the Cold War relics, many elite military flying courses have moved well beyond inherent attitudes of some.
Hats off to the many professionals in training.