The whole notion that we should be looking for ways to "fix" homosexual orientation in the womb - as if it were a birth defect or congenital disease - is based on the notion that homosexuality is inherently wrong or damaging. It's as disturbing as the "science" of eugenics was decades ago. For those not familiar with the term, see this wikipedia article.

Sure, you can say that homosexuality should be "fixed" in the womb because that poor baby will grow up to suffer from discrimination, so making them straight will do them a favor. You might as well say that we would be doing a favor to black people by altering their children in the womb so that they'll be white and not suffer from racial discrimination.

In other words, the problems of homosexual and minority individuals are not congenital or physical but cultural - and of course the real kicker is that they're other people's cultural problems.