It seems to me the real problem behind the homosexual rights is that many religious persons simply cannot put their scriptural and theological commitments to the side while they engage in actually listening to the other side. These people aren't merely hiding behind their biblical interpretations as the Rabbi suggests--their self identity is so wrapped up in their belief system that even beginning to envisage a world where perhaps they are wrong about homosexuality causes them unbearable confusion, uncertainty, and doubt.
Many religious persons use their beliefs to justify their way of life, to alleviate the uncertainty of their lives, and to make them feel, although perhaps naively, that their live's tragedies and successes are not in vain.
Religion is a crutch which helps people through the muck and mire of life, and when we begin to question even the most tangential aspects of religion, such as homosexuality, these people feel their very lives are in question.
In some ways asking some religious persons to but their beliefs on the back burner while they listen to actual people is like asking an alcoholic to put down his bottle for the good of his loved ones... they can do it, but not without tremendous restraint and pain... and unfortunately often they wont do it.
The biggest obstacle that must be overcome is learning how, if at all possible, we can get these types of people to listen.