Jeff the Baptist:
I often wonder if the prevalence of divorce is one of the reasons why homosexuality is on the rise in American culture. Geek deals with the debasement of the sanctity of marriage over at his place. And he's probably right. Once upon a time, the failure rate of homosexual relationships was a pretty good reason to oppose same-sex marriage. Now the heterosexual failure rate is also huge so that's a wash.
But I often wonder if divorce isn't promoting the homosexual lifestyle in other ways than just debasing the institution of marriage. I've heard a lot about strong correlations between gay lifestyles and poor parental figures (distant fathers or weak mothers depending on the sex of the individual). I wonder if there is also a correlation with divorce for similar reasons. It seems to me that divorce would often degrade one parent as a role model. The current high divorce rate would increase the likelihood of children growing up under those conditions.
It would be an interesting subject to study, although even correlation would not delineate causality.
I can't put any statistics behind it, but I would speculate that one of the causes of American divorce is romantic perfectionism. In world history, it's quite unusual for a society to consider love to be a prerequisite for marriage. And I've met people who considered perpetual romantic bliss (puppy love) to be essential for a marriage worth continuing. Such people are doomed to a string of failed relationships. Love is more than a feeling that overcomes us; it is a conscious decision that we make.