you're not really pitting left v right here when it comes to this; there's not anything particularly left wing about "new families for all!", and there's not anything particularly right-wing about staying at home until you're 50.
what you're really pitting against each other is a concept of dour rationalism against the irrationality of consumer capitalism. it's logic vs impulse. and, in a way, it's consequently intelligence v stupidity.
my parents were not intelligent people, and i've suffered for that. i would hope other people take more benevolent approaches to their kin.