Equating homosexuality with race presumes they are analogous. There is no scientific evidence to support such an assertion, and worse, the way you've written it here, presumes it to be a commonly accepted fact (something you know full well isn't the case, particularly in a forum such as this).

Race is hardly different than hair color, eye color, height, body shape, sound of the voice, etc., and as such is irrelevant to much of anything. Homosexuality, particularly as it relates to marriage, is about a person's feelings, how those feelings are to be dealt with, and whether or not society will try to encourage, discourage, or be neutral in reaction to them. To use one example, from the psych courses I took in college, there have been some genetic links found with alcoholism and "anti-social behavior". Societally speaking, we have concluded that neither alcoholism or anti-social behavior, is acceptable, regardless if "God made them that way". I.e., it's deemed that those behaviors should be deterred. But if someone wants to get drunk every day, he is free to do so. Society does indeed have a vested interest in promoting heterosexual monogamy as the optimal marital unit. Unless one believes there are no inherent differences between men and women (something only a highly educated/brainwashed person can believe) then a mother and father have something unique to offer a child — something which cannot be provided by two (or more) men, or two (or more) women. What's more, if one accepts inherent differences (and I'll add, that they are complementary differences) then those differences inherently provide a maturing aspect to the marital bond, as we struggle and work to get along with the "other". What's more, if you want feelings to be the only guide, then you have absolutely no argument against polygamy, incest, and promiscuity, all of which can come from feelings, and mutual consent between adults.

Debates about this issue have been raging for decades, and anyone participating in it should already know arguments such as I've laid out here, and should be working from those understandings. It is tiresome in the extreme to have to repeat the same things a thousand times over, as if they'd never been addressed before, particularly to highly educated professional types.

Unfortunately, our courts and legislatures, as well as many people in our society at large, now seem to view the principles of "equality" and "personal liberty" as trumping any notion of civic morality to the point of anything goes provided no one seems to get hurt (as far as I can know). We have become a secular, agnostic society with no corporate morality or accountability. The slide began long before gays got the itch to get hitched. It began when we bit into the notion that "you can't legislate morality."

Now, the separate, but related issue of ministering to sinners who struggle with homosexual desires and have committed sinful acts. We should preach law and gospel as we would to any sinners. I'm not saying there aren't other psychological theories or practices that can help someon with addictions or strong desires that individuals want to overcome.