France is in the grips of yet another crisis involving the country’s particular version of secularism, known as laïcité. But this time, it’s a food fight. In March, Gilles Platret, the mayor of Chalon-sur-Saône, said the town’s public schools could no longer offer a pork-free option at lunch. The ban took effect after the town’s municipal council endorsed it last month.

Mr. Platret’s absurd argument is that offering an alternative for students who, for religious or other reasons, do not eat pork is “discrimination.” Mr. Platret says ensuring that all children are served the same lunch upholds France’s secular values.

This is worse than disingenuous. Forcing children to choose between eating pork and going hungry is a perversion of the principle of secularism. In fact, making an issue of what children eat for religious reasons is simply one more way to stigmatize and marginalize France’s minority Muslim communities, as well as its Jewish population.