Aging populations are unlikely to go through conflicts. Countries with youthful populations (e.g., in the Middle East, Africa, etc) are much more likely to go through conflict and crime waves. This was the gist of Samuel Huntington's "Clash of civilizations".  

Multiculturalism has worked better than communism, fascism, dictatorships, etc, which preceded it in the West. And hopefully it will in the East too. 

Do you really not have faith in the goodness of your fellow Canadians? I do, and will keep doing so.