"The most common arguments for banning inter-racial marriage were: they violated God's design; black-white intercourse was mere sex, not marriage; if you allowed inter-racial marriage, polygamy and bestiality would inevitably follow. The most common arguments against same-sex marriage are: they violate God's design; gay relationships are merely about sex, not love or commitment; if you allow same-sex marriage, polygamy and bestiality inevitably follow." - Andrew Sullivan