some disturbing pittiful comments on here for sure. I am sorry to hear that some of you has been through some really unfortunate experiences.
Perhaps it is better for those who reply to also like some of you indicate where they did start settling, the city, town, region etc.
I know first handedly of some of my Canadian friends, yes, Canada-born people, that indeed Asian communities are truly ignorant, rude and distantive and always complaining about everything, specially the Indians and Chinese immigrants. In order to understand them, one should study their cultures and see that the one child policy in China and the class system in India/Pakistan/Bangladesh/Nepal all that spiced up with being considered emerging economies has resulted in such shameful behavior and off course Canada's government is to blame too that does not screen such better and hold them outside of the borders.
If one of them will tell me why I came here in the first place being an European myself, I shall repeat the question myself and wait for their reply before I answer. It is not rude, but you can at least start a dialogue and point out that Canada is not China or India, neither UK or USA. Either they like you or not. You should learn to take it all with a grain of salt, smile back and be friendly and ignore, ear in, ear out! You got other more important things to do and to take care of rather than allowing yourself to be put in a box or in the spotlight as danger.
I for one have learnt myself to speak their languages (at least a few words as to break the ice and respect their cultures) and that way, immediately change the whole attitude and direction of the conversation.
Perhaps you should try that too.
Having said that, I am sure this behavior is concentrated to places where you face more of the ignorant immigrants rather than the survival type. That is why I personally have never liked Vancouver that is famous for being an Asian city. Calgary vs Vancouver for example is like speaking of Canadian Oil vs Chinese Real Estate. so you go and figure.
Be yourself, find a way to break thorough the ice and start a dialogue. Do not provide people with too much information either. If they ask you what do you do or why did you come here? simply have an answer ready that does satisfy their thirst for a new subject or reason to blame others for their own failures and be good.
Moving to a new country such as Canada does not only mean to learn about the country itself, but Psychology too! ... learn human psychology and wave out all the misperceptions and ignore things that do not matter. I know, I for one, have been an immigrant before to a country with Nazi's and lots of hidden racism among the average Joe & Yolanda, so, I did my homework so I now can be just one of the many yet with a bigger heart!