A good article in the Times about the terrible state of Texas schools — followed by a truly awful comment thread, in which many readers rush to blame, you guessed it, teachers’ unions.

Folks, this isn’t an article about New York, where three-quarters of public-sector workers are unionized. It’s about Texas, where only one in five public workers belongs to a union. Blaming unions for the problems of Texas is like, well, blaming Jews for the problems of Japan: there aren’t enough of them to matter.

Sigh.