My latest HLI article is up at Zenit.org:
The state has no compelling interest to recognize the mutual affection of adults. The state interest in the legal recognition of marriage has been the acknowledgement of the uniqueness of the union of one man and one woman. Children born of such a union must be protected and the connection to their parents must be preserved. While it is true that not every relationship between a man and a woman will involve children, the union of one man and one woman is the only kind of relationship that can produce children. It is biologically impossible for the union of two men or two women to procreate. While men may have deep feelings and even love for other men and women may have deep feelings and love for other women, their relationships will always be barren unless they go outside the relationship for children. That is one reason it is impossible to equate same-sex relationships with the relationship between one man and one woman.
Please read the whole article here.