An acquaintance came to me a few weeks ago with the rough draft of a letter about free speech and asked me to sign. I declined, in part because it denounced “cancel culture.” As I wrote in an email, the phrase “‘cancel culture,’ while it describes something real, has been rendered sort of useless because it’s so often used by right-wing whiners like Ivanka Trump who think protests against them violate their free speech.”

A little later my acquaintance came back to me with a new version, which didn’t mention “cancel culture.” Like the people who wrote the letter, I think left-wing illiberalism is a problem, though I’ve mostly stopped writing about it since Donald Trump was elected, because it seems like complaining about a bee sting when you have Stage IV cancer.

So I signed. The statement, published in Harper’s Magazine as “A Letter on Justice and Open Debate,” spawned takes and countertakes, most of them, despite my modest effort, about “cancel culture.”

At first I avoided wading into discourse about what’s now called the Letter. It seemed self-indulgent to write about media angst when the country is self-immolating because of unchecked disease and an economic catastrophe that’s about to get much worse. But as the debate over free speech grew and grew, I started to think I was using the burning world as an excuse to avoid personal discomfort.

At the same time, a climate of punitive heretic-hunting, a recurrent feature of left-wing politics, has set in, enforced, in some cases, through workplace discipline, including firings. It’s the involvement of human resources departments in compelling adherence with rapidly changing new norms of speech and debate that worries me the most.

This sentence brought me up short; one of these things is not like the others. Anyone venturing ideas in public should be prepared to endure negative reviews and pushback on social media. Internal workplace reviews are something else. If people fear for their livelihoods for relatively minor ideological transgressions, it may not violate the Constitution — the workplace is not the state — but it does create a climate of self-censorship and grudging conformity.

One of the more egregious recent examples of left-wing illiberalism is the firing of David Shor, a data analyst at the progressive consulting firm Civis Analytics. Amid the protests over Floyd’s killing, Shor was called out online for tweeting about work by Omar Wasow, an assistant professor of politics at Princeton, that shows a link between violent protest in the 1960s and Richard Nixon’s vote share.

It should be said that many people on the left, including some who are often dismissive of the idea of left-wing illiberalism, condemned Shor’s firing. Surely one reason this episode has been invoked so often is that there aren’t many comparable examples of such obvious social justice overreach.

Still, there’s no question that many people feel intimidated. John McWhorter, an associate professor of English and comparative literature at Columbia who signed the Harper’s Letter, told me that in recent days he’s heard from over 100 graduate students and professors, most of them left of center, who fear for their professional prospects if they get on the wrong side of left-wing opinion.

Some on the left have argued, fairly, that those worried about people losing their jobs for running afoul of progressive orthodoxies should do more to strengthen labor protections, since all sorts of employees are vulnerable to capricious termination.

In a much-discussed essay on what he called “reactionary liberalism,” The New Republic’s Osita Nwanevu wrote, “In practice, workers of all stripes often lack the means and opportunity to defend themselves from unjust firings⁠ — all the more reason for those preoccupied with ‘cancel culture’ and social media-driven dismissals to support just-cause provisions and an end to at-will employment.”

None of this is an argument for a totally laissez-faire approach to speech; some ideas should be stigmatized.

I recently spoke to Wasow about the reaction to Shor tweeting his paper. “Much of what we call ‘cancel culture’ is just culture,” he said. “Culture has boundaries. Every community has boundaries. Those boundaries are always shifting. In the age of the internet, they move faster, and therefore where those boundaries are is less clear and less stable, and it makes it easier for people to cross those lines.”

But it’s a problem when the range of proscribed speech is so wide that the rules are hard to even explain to those not steeped in left-wing mores.

Writing in the 1990s, at a time when feminists like Catharine MacKinnon sought to curtail free speech in the name of equality, the great left-libertarian Ellen Willis described how progressive movements sow the seeds of their own destruction when they become censorious. It’s impossible, Willis wrote, “to censor the speech of the dominant without stifling debate among all social groups and reinforcing orthodoxy within left movements. Under such conditions a movement can neither integrate new ideas nor build support based on genuine transformations of consciousness rather than guilt or fear of ostracism.”

It’s not always easy to draw a clear line between what Willis described as “reinforcing orthodoxy” and agitating to make language and society more democratic and inclusive. As Nicholas Grossman pointed out in Arc Digital, most signatories to the Letter probably agree that it’s a good thing that the casual use of racist and homophobic slurs are no longer socially acceptable. “But those changes came about through private sanction, social pressure and cultural change, driven by activists and younger generations,” he wrote.

Willis reminds us that when these changes were happening, the right denounced them as violations of free expression. Of the conservative campaign against political correctness in the 1990s, she wrote, “Predictably, their valid critique of left authoritarianism has segued all too smoothly into a campaign of moral intimidation,” one “aimed at demonizing egalitarian ideas, per se, as repressive.”

But to let this occur is to surrender what has historically been a sacred left-wing value. One reason many on the right want to be seen as free speech defenders is that they understand that the power to break taboos can be even more potent than the power to create them. Even sympathetic people will come to resent a left that refuses to make distinctions between deliberate slurs, awkward mistakes and legitimate disagreements. Cowing people is not the same as converting them.

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