To be perfectly honest, I don't think that this petition business is about upholding gay rights. (You know any active gays who are disappointed that they can't get jobs at Wheaton or Biola?) It is about attacking and marginalizing conservative versions of Christianity. I would have thought that a national philosophical organization would be about generating and facilitating philosophical discussion, not about maintaining political correctness. The nondiscrimination policy had been in place for two decades and had never been interpreted to include codes of conduct. If "discrmination against orientation" is insufficient for these people, then they should introduce wording that includes discrimination against sexual conduct. The idea that we discovered, all of a sudden, in 2009, that some of the leading Christian colleges in America have been violating the APA discrimination code that had been in place for the last 20 years, is insane.
For atheists who think that Christianity is a "mind virus," who believe that religion poisons everything, who see God as a delusion, who seek then end of faith except for a few Baptists to be put in cultural zoos (so long as they don't try to teach their children that naturalistic evolution is false or that gay sex is a sin), this is an ideal tool.
Let me reiterate, I voted no on the marriage definition initiative (similar to California's Prop 8) here in Arizona, and would do so again. I am not even denying that the hostile environment that gay people face in many Christian environments is unfortunate. The hostile environment that many Christians face in some secular philosophy departments is no picnic either, let me assure you.