Well, yes, but you’re talking about two different issues. In your original post, you seemed to ask why psychologists stopped considering homosexuality a mental illness, hypothesizing that it was because homosexuality was found to be innate. Now you seem to be asking, “Can’t society condemn it, whether it’s psychologically healthy or unhealthy”, and of course, the answer to that is that society can condemn it, and many societies have. Whether society should condemn it or not is another issue entirely.
Also, please remember that Dr. Sptizer’s study, whether it’s correct or not, doesn’t place a normative value on homosexuality. I think a lot of people trumpeting the results of the study seem to think it does, but nothing in his study suggests that homosexuality is harmful. What the study suggests, even if it’s true, is not that it is beneficial for homosexuals to change their sexual orientation, merely that it is possible in some cases. Of course, the study also has numerous methedological flaws that have been discussed in other threads, but I just wanted to point that out.
Alcoholism is considered a disorder because it
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Causes a marked decline in social and vocational functioning.
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Causes marked emotional distress.
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Makes people forget to say “Hi, Opal!”
I think there are one or two other attributes of a disorder, but I forget them right now. Homosexuality does not cause a decline in social or vocational functioning, except so far as homosexuals are discriminated against by people who don’t like them. What I mean is, there isn’t a marked difference in what a homosexual can do as compared to a heterosexual. The same isn’t true for an alcoholic, who will show decreased ability and social isolation, not because of society’s attitudes towards alcoholism, but because it’s inherantly difficult to perform certain tasks and maintain relationships if you are an alcoholic who has not gone through treatment.
As for the “I can’t help myself” argument, I don’t think many gay people are making that argument at all. I think most people who argue for gay rights base their argument on the grounds that, in a democratic society, the government shouldn’t interfere with the sexual activity of consenting adults, and that people shouldn’t suffer from discrimination because of private actions that harm no one. The closest people come to the “can’t help myself” argument is the conservative argument for gay marriage laws; that it is more beneficial to society to encourage gay people to form monogomous relationships, and that current policies and attitudes towards gay people, instead of doing that, instead encourage gay people to be promiscuous.
However, even the conservative argument doesn’t rely on the “we can’t help it” argument, and certainly doesn’t use it as an excuse, because the conservative argument still is discussing those gay people who are happy with their sexuality.