My observations on this topic, anecdotal as it may be. When I have observed gays getting together for "therapy" it turns into more of a confirmation and acceptance of a mutual problem rather than anything therapeutic or altering. In other words, though it may exist, it seems that gays getting together is rarely healthy or productive. In contrast, gays I know have been healthier and happier living in a "straight" environment with a loving family.
To me this seems similar to getting high school kids together to talk about contraception. The delusional theory is that it is going to help but in fact compounds the problem because (1) contraception is something of a lie because it only deals with a portion of a problem and gives a false sense protection, (2) It does no good to talk about it unless you have it. All of this makes the concept absurd. What right minded parent is going to send their kid on a date and send them off with a condom, or go with them to make sure they use it?
It seems that in both the cases of social groupings based on homosexuality and contraception for teens there exists a huge acceptance of some false reality that seems to put human intellectual pride before principles, common sense or the realities of life.
The world is getting crazier by the day and a growing number of "good religious" people feel a need to keep up.