No need to argue. In fact, we should welcome this kind of posts, if it can help persuade Chinese to not to come to Canada (although I serious doubt it).
Remember, a better Canada is a Canada where there is less Chinese.
I think this post is too late to too many immigrants. When it was in good time in North America, people would laugh at you if you saying so. But now China changed too much, to the better direction. On the other hand, we changed to the other direction. That's why you feel dispointed. There's no quick cure for that feeling. As JianJIan said, grab the best opportunity now.