Unfortunately, this is the mentality a lot of people here don't like about immigrants who come to Canada. It's all about passport, going to the US eventually, etc.
Not that there is a way to weed people like that out in the current system, but i'd say at least if you're getting an opportunity to immigrate to a country whereas you don't have the same opportunity to do that with other countries, at least be grateful for that opportunity i'd say.
At the end of the day, you will have to spend some time in Canada, and you want to come off as halfway likable at least.