'Before marrying Bill de Blasio, Chirlane McCray identified as a lesbian, which has become part of the progressive credentials of New York’s first family...'

Oh brother.

So, British Olympic diver Tom Daley, who's just 19, came out as homosexual in a YouTube video a few days ago, and the homo-rights industry is all aflutter at the news. One small problem, though. The dude goofed in his announcement, saying "Of course I still fancy girls." Oops! Not cool, especially if you're looking for some creds. Seriously. I just love the quote at the headline about Bill de Blasio's wife identifying as lesbian before marrying the future mayor, because on the left it's all about maintaining your perverted ideological bona fides.

At the New York Times, "Bisexual: A Label With Layers — Tom Daley Comes Out as Bisexual, Igniting L.G.B.T. Debate":

“Of course I still fancy girls.”

Those six little words, tossed off like a request to please hold the mustard ....

But the cheers were premature, or at least qualified. Despite the trending Twitter hashtag #TomGayley, Mr. Daley never used the word “gay,” and there was the matter of his still fancying girls. While many commenters embraced the ambiguity (“I don’t care if Tom Daley’s gay or bi or whatever ... He’s still fit,” one tweeted), others raised eyebrows.

Was it a disclaimer? A cop-out? A ploy to hold on to fans? Was he being greedy, as some joked? Or was he, as the video’s blushing tone suggested, simply caught up in the heady disorientation of first love, a place too intoxicating for labels?

Whatever the answer, Mr. Daley’s disclosure reignited a fraught conversation within the L.G.B.T. community, having to do with its third letter. Bisexuality, like chronic fatigue syndrome, is often assumed to be imaginary by those on the outside. The stereotypes abound: bisexuals are promiscuous, lying or in denial. They are gay men who can’t yet admit that they are gay, or “lesbians until graduation,” sowing wild oats before they find husbands.

“The reactions that you’re seeing are classic in terms of people not believing that bisexuality really exists, feeling that it’s a transitional stage or a form of being in the closet,” said Lisa Diamond, a professor at the University of Utah who studies sexual orientation.

Population-based studies, Dr. Diamond said, indicate that bisexuality is in fact more common than exclusively same-sex attraction, and that female libido is particularly open-ended. That may explain why female bisexuality is more conspicuous in popular culture, from Katy Perry’s “I Kissed a Girl” to “The Kids Are All Right” and the Netflix series “Orange Is the New Black.” (That straight men may find it titillating doesn’t hurt.)

In a recent Modern Love essay in The New York Times revealing her relationship with another woman, the actress Maria Bello wrote, “My feelings about attachment and partnership have always been that they are fluid and evolving.” Before marrying Bill de Blasio, Chirlane McCray identified as a lesbian, which has become part of the progressive credentials of New York’s first family.

Male bisexuality, by contrast, is more vexed, and much of the skepticism comes from gay men. In the aftermath of Mr. Daley’s announcement, Ann Friedman wrote a post for New York Magazine’s The Cut blog predicting that male bisexuality would become more visible as gender mores evolved. “Traditional definitions of masculinity — which tend to go hand in hand with homophobia — are going through a real shake-up,” Ms. Friedman wrote. “More hetero men are tentatively admitting that they’re turned on by certain sex acts associated with gay men.”

The gay conservative pundit Andrew Sullivan swiftly countered on his own blog, The Dish, saying, “I suspect, pace Friedman’s dreams, that there will always be far fewer men who transcend traditional sexual categories — because male sexuality is much cruder, simpler and more binary than female.” He called Mr. Daley’s claim about liking girls “a classic bridging mechanism to ease the transition to his real sexual identity. I know because I did it, too.”

Keep reading.

The "It Doesn't Get Better" homo-bully Dan Savage is cited at the piece. He apparently hates bisexuals and has been accused of "biophobia."

Like I always say: It's hard out there for the freak rim-station radicals!