Argument: Gay marriage is separate issue from gay parenting
"Let them wed." Economist. January 4th, 1996: "The question of children in homosexual households—adoption, especially—is thorny. That question, however, is mainly separate from the matter of marriage as such. In settling a child with guardians who are not the natural parents, the courts and adoption agencies will consider a variety of factors, just as they do now; a couple's homosexuality may be one such factor (though it need not, by itself, be decisive)."