Many religious leaders and traditions do not need to revisit their stances because they already call for genuine love and respect for gay and lesbian people. They do not characterize sexual activity between people of the same sex as immoral, but they support equal rights and they advocate an end to discrimination.
It is a serious problem in our nation when the religious views of one or some traditions continue to be presented as if they are the only valid ethical or moral teachings, or that they somehow represent religion or faith. The truth is that there are differing positions both between religions and within religions.
If new evidence will prompt a change in the ethical teachings of those religious leaders who preach that homosexual activity is immoral, it should be welcomed. But it seems that every few months, there is a new study about the role of genetics in some aspect of life, whether addiction, mental illness or gender differences.