A Minnesota representative Steven Simon in a house debate on an amendment to ban same-sex marriage in that state asks, "How many more gay people does God have to create before we ask ourselves whether or not God actually wants them around?"
I find his argument with the pastor particularly interesting, where the pastor said that sexuality was a gift from god and therefore we must do what his authoritative god says to do with it, and Simon responds that the best way to honor it is to listen to it and to decide for oneself how to use it.
I'm not particularly religious and I'm definitely not Christian, but his argument is fundamentally philosophical and represents the difference between two different views on sexuality in the West. One values individualism, challenging authority, and self-reflection, the other values order, simplicity, and group-think.
I already know which side I come down on, although most people probably fall somewhere in between. While there are lots of gay people who think that the orientation is up to them, there are plenty who think that there should still be some sort of rules, something that's forbidden for no reason at all, because being without rules leads to insecurity. There are straight people who think the former view applies to them and the latter to others. There are people who are fine with some aspects of sexuality existing (not participating in them, but just knowing they go on), but not with others.
It depends on what god we're talking about at a given moment - a god that has prescribed a life to you that looks suspiciously like what contemporary, conservative Americans want it to look like or one who thinks that each person is an individual - and what a person thinks about sexuality - an unimportant, controllable force that's a necessary evil for producing life or an uncontrollable force that asks us to connect with one another.
We shouldn't be fooled into thinking that, when god is brought up in these debates, that people do that as anything besides a proxy for a more abstract philosophical discussion.