From the Witherspoon Institute:
November 14, 2012 (thePublicDiscourse) – Would recognizing same-sex relationships as marriages be much of a game-changer? What impact, if any, would it have on the public conception of marriage or the state of a nation’s marriage culture?
There has been no shortage of speculation on these questions. But the limited American experience with same-sex marriage to date gives us few concrete answers. So it makes sense to consider the Canadian experience since the first Canadian court established same-sex marriage a decade ago. There are, of course, important cultural and institutional differences between the US and Canada and, as is the case in any polity, much depends upon the actions of local political and cultural actors. That is to say, it is not necessarily safe to assume that Canadian experiences will be replicated here. But they should be considered; the Canadian experience is the best available evidence of the short-term impact of same-sex marriage in a democratic society very much like America.
Anyone interested in assessing the impact of same-sex marriage on public life should investigate the outcomes in three spheres: first, human rights (including impacts on freedom of speech, parental rights in public education, and the autonomy of religious institutions); second, further developments in what sorts of relationships political society will be willing to recognize as a marriage (e.g., polygamy); and third, the social practice of marriage.