BACK in 1993, the misanthropic art critic Robert Hughes published a grumpy, entertaining book called “Culture of Complaint,” in which he predicted that America was doomed to become increasingly an “infantilized culture” of victimhood. It was a rant against what he saw as a grievance industry appearing all across the political spectrum.

I enjoyed the book, but as a lifelong optimist about America, was unpersuaded by Mr. Hughes’s argument. I dismissed it as just another apocalyptic prediction about our culture.

Unfortunately, the intervening two decades have made Mr. Hughes look prophetic and me look naïve.

“Victimhood culture” has now been identified as a widening phenomenon by mainstream sociologists. And it is impossible to miss the obvious examples all around us. We can laugh off some of them, for example, the argument that the design of a Starbucks cup is evidence of a secularist war on Christmas. Others, however, are more ominous.

On campuses, activists interpret ordinary interactions as “microaggressions” and set up “safe spaces” to protect students from certain forms of speech. And presidential candidates on both the left and the right routinely motivate supporters by declaring that they are under attack by immigrants or wealthy people.