First paragraph: They're gay. No amount of prayer is going to change their genetic predisposition. I would have thought this was a pretty easy thing to realize. Obviously you don't understand science, and your rush to judge and enforce your beliefs upon others makes me question just how well you understand religion. What you understand is what you were taught about your particualr view of Christianity. Did you know the number of Chritian sects in the world reaches into the 5 digit range? Thirty-Forty thousand, maybe more, sects of Christianity exist. Even the Catholics have multiple divisions among their church. (purposely avoided sects there to steer away from altar boy jokes) So which view of Christianity is the right one?
If he was happy when he was "straight", don't you think he would have remained straight? The truth, as painful as it is for you to hear, is he was never straight. Do you honestly believe that a move to California is going to cause a man to "turn" gay? Do you believe he would subject himself to the judgement of you and his family on a whim? Despite the strides that have been made, gays are still persecuted in today's world, even in California. He revealed himself after years of living a lie in hopes of finding happiness. I pray he finds it. Whatever the afterlife holds for him, I'm sure you have made your points clear and he knows your views. Unless you're willing to let him decide your fate, then stop trying to decide his. As I've said before, God claims that right. According to your own religion, it is His and His alone.
Same applies to your female cousin.
I agree it is okay to have opposing opinions. I'm all for you expressing your opinions. What I disagree with is your view that you should be able to enforce your opinion on others. You may disagree with gay marriage, but please, tell me, how does gay marriage effect you personally? If you're not gay, it doesn't, so why fight so hard against it. You think it's wrong? Fine, don't practice it, but don't tell others they can't practice it either. Let others make their own choices.