Reply #11: Possibly

[bluestateguy]

But never assume that children will end up voting just like their parents, and I see rising rates of immigration as helping the Left even out this disparity.

People on the Left are less likely to lead conformist lives, meaning that they won't have children just because the rulebook of society says you are supposed to do at a certain age. This would also explain why people on the Left are more inclined to want to live in the city rather than the suburbs (most of them anyway, save for trendy places like Marin County, CA) or some homogeneous small town. In cities, diversity is appreciated and celebrated, while small towns and most suburbs look upon diversity and alternative lifestyles with disdain or suspicion.