"What has happened, first, is that the overwhelming majority of Canadians under age 45 have stopped voting — not out of apathy as far as anyone can tell, but because they simply don’t see their political agendas mirrored in the agendas of Parliament and the provincial and territorial legislatures. How democratic is a country where most citizens below the median age don’t vote? Canada has become a country governed by a gerontocratic minority."

This explains it in a nutshell. Harper knows it, and it is exactly these divisions that he is doing his utmost to cultivate to keep things that way.