If someone don't like the place I am living now, I wouldn't

care much, and definitely wouldn't go so far as calling the person the most shameless person I have ever seen on the internet.
If you can't even take a decent and well-thought opinion regarding a huge country where you are just one of the residents, and link that person with meaningless references (his profession, his financial status, things have nothing to do with his opinion), then I think you are really too narrow-minded, to say the least. Shameless or not, it's upon other people to judge.
(You are just a doctor! There are many people, including Chinese people richer than you living in Canada.) Where is that coming from? Does that have anything to do with one's opinion regarding a place?