Justice Alito: "Today’s decision usurps the constitutional right of the people to decide whether to keep or alter the traditional understanding of marriage. The decision will also have other important consequences. It will be used to vilify Americans who are unwilling to assent to the new orthodoxy. In the course of its opinion, the majority compares traditional marriage laws to laws that denied equal treatment for African-Americans and women. The implications of this analogy will be exploited by those who are determined to stamp out every vestige of dissent."
Justice Scalia: "This is a naked judicial claim to legislative — indeed, super-legislative — power; a claim fundamentally at odds with our system of government. Except as limited by a constitutional prohibition agreed to by the People, the States are free to adopt whatever laws they like, even those that offend the esteemed Justices’ “reasoned judgment.” A system of government that makes the People subordinate to a committee of nine unelected lawyers does not deserve to be called a democracy."
Justice Thomas: "Our Constitution — like the Declaration of Independence before it — was predicated on a simple truth: One’s liberty, not to mention one’s dignity, was something to be shielded from — not provided by — the State. Today’s decision casts that truth aside. In its haste to reach a desired result, the majority misapplies a clause focused on “due process” to afford substantive rights, disregards the most plausible understanding of the “liberty” protected by that clause, and distorts the principles on which this Nation was founded. Its decision will have inestimable consequences for our Constitution and our society."
Justice Roberts: “But this Court is not a legislature. Whether same-sex marriage is a good idea should be of no concern to us. Under the Constitution, judges have power to say what the law is, not what it should be. The people who ratified the Constitution authorized courts to exercise 'neither force nor will but merely judgment.'”