With the so-called "Orthodox" same-sex "marriage" ceremony, the issue was not same sex marriages. The issue was the correctness of terms and the clarity of definitions.
In my latest Jewish Tribune article, I develop this idea further. Please see http://www.jewishtribune.ca/TribuneV2/index.php?option=com_content&task=view&id=5305&Itemid=53
Rabbi Ben Hecht