Of course it happens Labu. Everywhere.
Do not respect chinese and it will happen there(or even if you respect them but they have to axe you because they need to fail a certain percentage), Japan, same. Middle East - OF COURSE. Most likely the place where you can expect the most racism.
And I tell you what - hate was there 500 years ago, most certainly in the 20th century and of course in the 21st. Guess what - it will be the same in the 25th century. As long as humans "run" the world nothing really will change.
Now - if you could PROOF such a thing you claim(and many other of us experienced onced in a while) for instance in Europe or the US you could actually do something about it. Problem, how to proof such an individual and personal thing. BUT - ME is the Wild West. They do what they want and when they want. And guess what(again ^^) - it would not even stop AFTER they would employ you(more or less the same case with China). Still you could be target of unfair punishment and you could do nothing about it except maybe jump ship(if you got another job lined up already).
Maybe it was a good thing not to enter that outfit, who knows. I, most certainly, do NOT miss my time with QR in the early 2000's.....A B is still around, so I think nothing has changed there either.