The below quote is taken from an interview Fr. Josiah Trenham conducted with Roman Catholic Archbishop Cordileone of San Francisco about same-sex marriages. Listen to the full interview here:
“….it [legalization of same sex marriage] will also undermine our understanding of friendship. Because what they call the revisionist view of marriage as opposed to the conjugal view, the classical view…. The only difference in marriage is that it’s not one of type but of degree, it’s the most intensive type of a friendship and of affection. And so people will begin to see that the only way to express friendship is in this way and they won’t see marriage as being a unique relationship and friendship having its own unique relationship as well, they won’t be able to understand the difference between marriage and friendship and so it’ll undermine also our capacity for friendship.