Listen to Dan Kennedy discuss the coordinated editorials on WGBH's All Things Considered.

Consider the humble newspaper editorial. Unsigned and often unread, these gray exercises in cautious chin-stroking — representing as they do the theoretically awesome power of the institution — assert, applaud, deplore, and urge. But only rarely do they leap off the screen or page and grab the reader by the throat.

For the past several years, though, The Boston Globe’s opinionators have been trying desperately to break free from that swirling vortex of irrelevance. A satirical front page imagining a Trump presidency drew applause, moans, and brickbats. More successfully, the paper published several digital editorials about gun violence that incorporated interactive data presentations and online tools for contacting elected officials. ( Here’s the most recent example.)

Now the Globe has embarked on its most audacious campaign yet: a call for newspapers across the country to publish editorials this Thursday condemning President Trump’s repeated assertions that journalists are “the enemy of the American people” and purveyors of “fake news,” an outrageous tactic that has led to threats against reporters at Trump rallies. More than 200 papers have signed on so far. “This dirty war on the free press must end,” the Globe said in announcing the coordinated effort, which you can follow on Twitter at #EnemyOfNone.

The idea originated with Marjorie Pritchard, the Globe’s deputy editorial-page editor. She told me by email that she brought it up at a meeting of the editorial board (journalists who work for the opinion section) and got the go-ahead to begin contacting the editorial boards of other newspapers. Given the difficulty of changing anyone’s minds in this era of hyperpolarization, I asked her whether she thought the effort could truly make a difference. She took the optimistic view.

“This effort is an attempt to break through sides and remind everyone of the importance of a free press, no matter what their political preference is,” she said. “A free and independent press is one of the most sacred principles enshrined in the Constitution. It must remain so.”

The newspapers taking part will each write and publish their own editorials. “The impact of Trump’s assault on journalism looks different in Boise than it does in Boston,” Pritchard wrote in announcing the campaign. “Our words will differ. But at least we can agree that such attacks are alarming.” That should at least partly counter any claims made by Trump supporters that the mainstream media are marching in lockstep with the Resistance to drive the president out of the White House. Still, there is a certain predictability regarding who’s for it and who’s against it.

In addition to the 200-plus newspapers that have responded to the Globe’s call, organizations such as the New England Newspaper and Press Association and the American Society of News Editors are lending their support. Last Friday on WGBH-TV’s “Beat the Press,” Tom Fiedler, the dean of Boston University’s College of Communication, gave the idea a hearty “rave.” For press advocates, the campaign is an opportunity to stand up for First Amendment values in the face of president who seeks to delegitimize journalism in the eyes of his followers.

But Trump-supporting media outlets have mocked the effort as the usual drivel from the usual suspects. “This is just another day at the office,” wrote Karen Townsend at Hot Air. “The press has never supported President Trump and both print and television network coverage has been grossly skewered [sic] negatively against him.” Over at Breitbart, John Nolte called the Globe a “far-left” outlet and, not surprisingly, turned the very fact that newspapers are working together on its head. “The bottom line,” Nolte said, “is that this coordinated attack coming from all corners of the establishment media only serves to validate the criticism coming from Trump and other media critics.”

In a sense, the effort is a perfect illustration of the dilemma facing the press right now. On the one hand, mainstream news organizations are attracting more subscriptions, donations, and readers. On the other hand, that increased interest is almost entirely restricted to opponents of Trump, as his supporters have gravitated to their own media ecosystem dominated by Fox News and Breitbart.

As someone who has written my share of unsigned editorials over the years, I doubt that more than a handful of hearts and minds are going to be changed on Thursday. But that doesn’t mean it’s not worth doing. Journalism is under siege. Last week, incredibly, a new poll showed that 43 percent of Republicans believe the president should have the authority to shut down “news outlets engaged in bad behavior.”

It’s time for us to stand up for our values and to remind the public of what the First Amendment is all about. What we’re not: perfect. What we are: an independent monitor of power, the absence of which would make this fraught moment infinitely worse.

WGBH News contributor Dan Kennedy is the author of “ The Return of the Moguls: How Jeff Bezos and John Henry Are Remaking Newspapers for the Twenty-First Century.”