As I replied to someone above, I'd love to say it's all about men controlling women, but I think it's more insidious - after all, there are plenty of men who support a woman's right to choose, and there are far too many women who want to control their fellow females. I almost think it's more about the Moral Majority having found a way to control a sizable segment of the population by virtue of biology - you can almost see the light bulb going on over the head of the first person to figure this out, long ago, and them going "EUREKA!!!"