But of course Donohue was just using his “religious” objections as a perfunctory cover for the homophobia actually driving his complaint. The truth popped out of the closet as Donohue expanded his indictment to “pornographic images of gay men.” His Republican Congressional allies got into the act. Eric Cantor called for the entire exhibit to be shut down and threatened to maim the Smithsonian’s taxpayer funding come January. (The exhibit was entirely funded by private donors, but such facts don’t matter in culture wars.) Jack Kingston, of the House Appropriations Committee, rattled off his own list of exaggerated gay outrages in “Hide/Seek,” from “Ellen DeGeneres grabbing her breasts” to “naked brothers kissing.”

It took only hours after Donohue’s initial battle cry for the video to be yanked. “The decision wasn’t caving in,” the museum’s director, Martin E. Sullivan, told reporters. Of course it was. The Smithsonian, in its own official statement, rationalized its censorship by saying that Wojnarowicz’s video “generated a strong response from the public.” That’s nonsense. There wasn’t a strong response from the public  there was no response. As the museum’s own publicist told the press, the National Portrait Gallery hadn’t received a single complaint about “A Fire in the Belly” from the exhibit’s opening day, Oct. 30, until a full month later, when a “public” that hadn’t seen the exhibit was mobilized by Donohue to blast the museum by phone and e-mail.

The Post’s Gopnik has been heroically relentless in calling out the Smithsonian and the National Portrait Gallery for their capitulation. But few in Washington’s power circles have joined him, including the Smithsonian’s Board of Regents  a gilded assembly of bipartisan cowardice that ranges from Senator Thad Cochran, Republican of Mississippi, to Senator Patrick Leahy, Democrat of Vermont. This timidity has been particularly striking given that the city’s potentates gathered to bestow the Kennedy Center Honors last weekend on the choreographer Bill T. Jones, whose legendary artistic and personal partnership with Arnie Zane came to a tragic end when Zane was killed by AIDS at age 39 in 1988.

It still seems an unwritten rule in establishment Washington that homophobia is at most a misdemeanor. By this code, the Smithsonian’s surrender is no big deal; let the art world do its little protests. This attitude explains why the ever more absurd excuses concocted by John McCain for almost single-handedly thwarting the repeal of “Don’t Ask, Don’t Tell” are rarely called out for what they are  “bigotry disguised as prudence,” in the apt phrase of Slate’s military affairs columnist, Fred Kaplan. Tony Perkins of the Family Research Council has been granted serious and sometimes unchallenged credence as a moral arbiter not just by Rupert Murdoch’s outlets but by CNN, MSNBC and The Post’s “On Faith” Web site even as he cites junk science to declare that “homosexuality poses a risk to children” and that being gay leads to being a child molester.

It’s partly to counteract the hate speech of persistent bullies like Donohue and Perkins that the Seattle-based author and activist Dan Savage created his “It Gets Better” campaign in which gay adults (and some non-gay leaders, including President Obama) make videos urging at-risk teens to realize that they are not alone. But even this humanitarian effort is controversial and suspect in some Beltway quarters: G.O.P. politicians and conservative pundits have yet to participate even though most of the recent and well-publicized suicides by gay teens have occurred in Republican Congressional districts, including those of party leaders like Michele Bachmann, Mike Pence and Kevin McCarthy.

Has it gotten better since AIDS decimated a generation of gay men? In San Francisco, certainly. But when America’s signature cultural institution can be so easily bullied by bigots, it’s another indicator that the angels Keith Haring saw on his death bed have not landed in Washington just yet.