Julie,
Let me try to show you what this sounds like to me:
"I may not be a Christian, or otherwise involved in Christian community, but I've done my homework on what Christianity is <I>really</I> about. I'm aware of what goes on in the Christian community, including its fringe groups -- like the Christians who teach that black people don't have souls. <I>(I'm not making that part up, unfortunately.)</I> I know what goes on in the darkest side of Christianity, and I think that needs to be taken into consideration if you're going to talk about Christians having the right to proselytize."
Not my actual opinion... just a parallel.
Aineo,
There were people who thought it was ludicrous that people of different races might marry. Ludicrous and patently wrong. The Supreme Court went ahead and redefined marriage, from their perspective. And I think, sooner or later, one way or another, it's going to happen again. There are plenty of precedents in this country for extending rights to people who were once seen as fundamentally unequal.
I don't really know what the scene is like for gay men. The ones I know are past the dating and/or hopping-into-bed stage, since they're in long-term relationships. One of them does brag about the exploits of his youth (particularly the number of supposedly straight men he had sex with), but has settled down into a monogamous relationship. Another was a virgin until he committed to his partner, with whom he's now raising two children.
S&M -- or anything else you'd care to list -- is neither intrinsic to homosexuality, nor exclusive to it. And monogamy is neither intrinsic to heterosexuality, nor exclusive to it. The thing is, I don't see how citing promiscuity among homosexuals is an argument against gay marriage. People who jump from one-night-stand to one-night-stand aren't likely to be tying the knot with anyone, are they? The people who <I>want</I> to get married are the ones who are already <I>in</I> committed relationships.
The way I see it, odds are against <I>any</I> given relationship. Few people are lucky enough to fall in love with the first person they date... and not everyone marries the first person they fall in love with, either. And even after marriage, divorce is common. So if the odds are even <I>more</I> against me because I'm gay... well, so be it. (Although I'd still like to see your source.) There isn't much I can do about it; my chances for a heterosexual relationship are nonexistant.