re: #48 Targetpractice
Yes, state after state have decided to define marriage as Christians define it. Hence why polygamy and same-sex marriage have been banned for much of our history, as was interracial marriage before Loving.
The ban on polygamy has a real basis in practical law however. Because the various unique, bilateral legal rights and privileges relationships in a marriage scales up according to the equation (N!/(N-2)!)/2