First, it runs against the legislative norms of any established society in the history of the world. Never has there been a society where homosexual marriage has been deemed as on equal footing, legally speaking, to heterosexual marriage. Obviously, homosexual activity has long been a part of human society. Societies have dealt with it in various ways. Some have swept the matter under the carpet. Others have persecuted homosexuals. Others have lauded homosexual behaviour as an ideal form of love. None have legislated it as a full and equal part of marriage. This is for obvious reasons: homosexuality is not procreative. It is an interesting side bar to this current debate that population levels are actually decreasing in many Western societies today.