I don't know where the idea ever came from that attendance to a wedding means you support the union. Some people attend weddings hoping to meet a new boyfriend/girlfriend. Some tend to reunite with relatives they haven't seen for years, all under one roof. Some attend to avoid a family rift. None of these popular reasons for attending a wedding have ANYTHING to do with how the guest feels about the actual union. I don't believe in same sex but if my niece invited me to her same sex wedding, I'd go because simply due to the fact, I cherish my niece. Has nothing to do with whether or not I approve the union. Drink some coffee, people.