Via Atrios:
[A]ppealing to the sincerity of [Christians'] beliefs is a way of privileging them, to put them in the realm of privileged discourse, as well as removing the person's responsibility. I don't really care if the desire to discriminate against gay people, or turn the uterus into state property, is motivated by sincere religious conviction. I don't think religious conviction, sincere or otherwise, makes your beliefs somehow special. If you think your misogyny or homophobia is sanctioned by God, it doesn't make you not a misogynist or homophobe.
I've had this conversation with anti-choice progressives, who think it's important for me to understand that their anti-choice views come from a sincere religious belief. The thing is, I just don't care. The fact that your political beliefs are motivated by your religion doesn't make them special to me.