To tell you the truth, I've never met a Vietnamese in my entire life. I do not know how their mind works or how they are with the Chinese in real life. All I have every interacted with any Vietnamese is here in this very forum.
But the thing here is, your hatred for all the Vietnamese is clouding your judgment. Do not mix sports with politics.
Let me tell you a story.... I was born to a very poor Chinese family and we had lived in this just one room with no kitchen, no bathroom, no hall, no dining room, no balcony... nothing, nada....It was a room with walls made of card board and I was raised in the very same room where we ate, slept and bathed. We couldn't even afford a motorbike let alone a car. My father used to drop me off to school on his bicycle with his sweat dripping down. I remember those days when we couldn't even afford a proper meal, but my parents would sacrifice their share and then lie to me saying they are not hungry. Today, when I recall those days, It can only bring tears, but I can't change it nor help it, so I promised to myself to become the very best of me. Today, I have almost everything I have ever desired, but I couldn't give back to my parents whatever they have sacrificed. It's the past, I just can't change it, but I can correct it. So, when my mother fell sick, the least I could do was, I had her admitted to the very best hospital in the country, yet, she succumbed. So, money wasn't everything. It's how we make ourselves to become a proper human being.
Now, you tell me, should I be rude and superior when someone is dirt poor and then laugh at them? Or should I recall and understand the days of my childhood life? You be the judge.