The “law-professional culture,” Justice Scalia wrote, “has largely signed on to the so-called homosexual agenda, by which I mean the agenda promoted by some homosexual activists directed at eliminating the moral opprobrium that has traditionally attached to homosexual conduct.”

It’s not every day that a leading law firm fires a client for holding a position so extreme that it may be said to be unworthy of a defense. And it is rarer yet — unheard of, really — when that client is the House of Representatives and the position in question is a federal law.

Yet that is just what King & Spalding, a venerable Atlanta firm, did last week. Under pressure from gay rights groups and apparently fearful of criticism from the law students it recruits and the corporate clients it serves, the firm said it would not defend the federal Defense of Marriage Act against a challenge that it violates the Constitution.

The episode has so far mostly been discussed as a matter of legal ethics, and the firm has had a rough ride. But there is something larger going on, too.

For many gay rights advocates, the decision amounts to a turning point in the debate — the moment at which opposition to same-sex marriage came to look like bigotry, similar to racial discrimination and the subordination of women.

To opponents of same-sex marriage, the firm’s decision is the latest evidence that elite opinion generally and the legal culture in particular is racing ahead of popular opinion and shutting down a worthwhile debate.

“There is a big gap between elites and everyone else” over same-sex marriage, said Maggie Gallagher, the president of the Institute for Marriage and Public Policy, which supports traditional marriage. The polls and political science literature support her: What may be orthodoxy in faculty lounges remains an open question among the public at large.

Another critic of same-sex marriage said King & Spalding’s decision illustrated just how wide the divide between elite and mass opinion on same-sex marriage has become.

“There is no doubting that the default position of the American academy is to dismantle the institution of marriage and remake it on a new basis,” Matthew J. Franck of the Witherspoon Institute, a conservative research group, wrote in a blog post on Friday.

“The deadly combination of unchallenged liberal presumptions and casual intimidation of dissenters is probably at its worst in the most prestigious universities, which set the tone for the rest of the country, on this issue as on many others.”

Ms. Gallagher sounded bitter and besieged as she described how the nature if not the substance of the debate had shifted. “Either you’re with them or you’re a hater,” she said of gay rights advocates. “They’re trying to exclude you from the public square.”

Read More: http://www.nytimes.com/2011/05/01/weekinreview/01gay.html?ref=adamliptak

Adam Liptak is the Supreme Court reporter for the New York Times