The effects of same-sex marriage

Opponents of same-sex marriage claim that it will somehow destroy the institution of marriage and cause damage to heterosexual married couples. But a book that examines the data from Scandinavian countries that have had legal same-sex marriage for the last 17 years suggests otherwise--rather than destroying heterosexual marriage, those countries have seen higher heterosexual marriage rates, lower divorce rates, lower rates of out-of-wedlock births, lower rates of sexually transmitted disease, and more monogamy among gay couples.