Yeah Hawk, the various sects, denominations, divisions within divisions and god knows what else that make up the entity of American Christianity are, frequently at odds. They may not agree on much but, in the area of gay marriage, they toe the party line. And, it's not just the Christian Churches that oppose gay marriage on moral or religious grounds. Islam and orthodox Jewery make strange bedfellows but they are as one on the subject of bedfellows.
I kind of sympathize with them. I get the same feeling when I see that singer/songwriters want to be called folksingers (because there are more folk venues than poetry venues) but I'll just have to live with it. Someday traditional music will be in vogue again and I'll know the songs already.