It shouldn’t be hard to imagine how Americans will react to the court conspicuously providing aid and comfort to the 19 percent. You may reason, justices, that by joining Justice Alito’s opinion, you will merely be changing the terms on which abortion issues get decided in the United States. In reality, you will be lighting another cultural fire — one that took decades to get under control — in a country already ablaze over racial issues, school curriculums, criminal justice, election laws, sundry conspiracy theories and so on.

And what will the effect be on the court itself? Here, again, you may be tempted to think that overturning Roe is an act of judicial modesty that puts abortion disputes in the hands of legislatures. Maybe — after 30 years of division and mayhem.

Yet the decision will also discredit the court as a steward of whatever is left of American steadiness and sanity, and as a bulwark against our fast-depleting respect for institutions and tradition. The fact that the draft of Justice Alito’s decision was leaked — which Chief Justice Roberts rightly described as an “egregious breach” of trust — is a foretaste of the kind of guerrilla warfare the court should expect going forward. And not just on abortion: A court that betrays the trust of Americans on an issue that affects so many, so personally, will lose their trust on every other issue as well.