Liberal smugness nauseates me when it doesn't make me laugh. Mocking Michelle Bachman's husband's clinic for treating men for homosexuality is just the latest example. (I'm not defending here the malleability view of some conservative Christians.) We all know the liberal reasoning: Science has demonstrated that a homosexual orientation is genetic so, therefore, it is normal. The thinking that has gone into this talking point belies typical liberal shallowness.
First, twin studies have estimated the heritability for homosexual orientation to be well under 50 percent. Alcohol abuse, by contrast, is over .5. (If you're offended by my example, simply substitute shyness, negative emotionality or any of a very long list of traits.) To be consistent, liberals should be arguing that alcoholism is even more genetic than homosexuality and therefore should be enthusiastically embraced by society, and the notion of treatment is absurd.
Although they leave their beliefs unexamined, they consider alcoholism to be problematic because of the costs that it imposes on people. (Of course, many progressives still deny that genes are important for just about anything other than homosexual orientation.) Their morality is that sexual behaviors are good if people have a desire to do them, and nobody gets hurt. But that doesn't explain their discomfort with, for example, polygamy, prostitution, or bestiality, so throw in heavy doses of public image work (i.e., propaganda) done by cultural elites, and we have an moral-psychological explanation for why liberals equate biology with goodness in the case of homosexuality.
Liberals are blind to how their view of the goodness of homosexuality is at its base moral, not scientific. (One can very easily make that case that, assuming an evolution-based morality, homosexuality is pathological because it works against reproduction.) Conservative Christians are very open about their values. Liberals, on the other hand, delude themselves into thinking that their beliefs are science. Christians believe in an eternal objective morality. (Flawed humans don't apprehend it fully, but it is there nevertheless.) Progressives look to Hollywood for today's right and wrong. When I was a little boy, gay men were portrayed as villains in movies. Today they are saints and martyrs. Right and wrong change so quickly, I can't keep up. Elites change their minds so often, one begins to think they have no idea what they're talking about.