If as a society, we accept homosexuality, then naturally, we must afford all individuals with equal rights and privileges, regardless if they freely choose a gay lifestyle or if they are compelled by genetic disposition. So why do we continue to avoid answering the fundamental question in favor of the question of genetics?
The idea that the majority is under attack is reinforcing to anyone who stands on the brink of losing unearned privileges they have long taken for granted. It hurts to be taken down a peg, to discover you're no better, no more deserving, than anyone else. Better to lash out, mobilize the masses. Misdirect them at an imagined enemy. Anything to maintain that privilege.
Robert Gates is not to blame that the ban on homosexual adult leaders was not addressed years sooner, but he must answer for the current plan that seeks to devolve anti-LGBT discrimination to all of those faith-based chartered organizations that might prefer to exclude LGBT parents. This is wrong and divisive.