I think this has all the warning signs of the https://en.wikipedia.org/wiki/Hawthorne_effect

Don't get me wrong there is nothing that hinders poor Muslims from Syria to adapt to and eventually contribute in Canada but you just need a look at many europea countries to see the issues statistically it's quite depressing. (One a positive note though muslim women are some of the best educated in many countries of Europe)

The US as far as I am aware is still the country who have found the best model for integrating people from other cultures into their country.

This is not because the US is a melting pot as many like to claim but rather a tossed salad.

No other country allow people to maintain their own culture while still forcing them to contribute to society if they want to make it.