That is absolutely not the largest study ever done on immigration in Canada - not by a long shot. It's a global study meant to compare national attitudes across 20 countries worldwide. The sample for Canada was about 1000 - at the low end for a robust national survey. Plus, the question was not about multiculturalism or even about the impact of historic immigration to our country, but about current levels of immigration, and kinds of immigration, within the current climate of fear. Even then, we ranked number 4 among all the countries included when it comes to our openness toward immigration. Plus, this study has been updated. So. There's that.