John concludes with "Multiculturalism works and Canada is proof." This is  non-sequitur when you consider the fact that nativism was the government philosophy for a century before the 1980's and it "worked" very well also. Or reductio ad absurdum -"Gender segregation works and Saudi Arabia is proof." The fact is , any advanced resource rich nation with established infrastructure can afford to social engineer and have it work.So it really does not prove anything that Canada is stable with its current sociological ideology based on open door immigration and cosmopolitan sympathies.