its reach and extent, departs from this history and tradition of reliance on state law to define marriage. "'[D]iscriminations of an unusual character especially suggest careful consideration to determine whether they are obnoxious to the constitutional provision.'" Romer v. Evans, 517 U.S. 620, 633 (1996) (quoting Louisville Gas & Elec. Co. v. Coleman, 277 U.S. 32, 37–38 (1928)).
The Federal Government uses this state-defined class for the opposite purpose—to impose restrictions and disabilities. That result requires this Court now to address whether the resulting injury and indignity is a deprivation of an essential part of the liberty protected by the Fifth Amendment. What the State of New York treats as alike the federal law deems unlike by a law designed to injure the same class the State seeks to protect.
In acting first to recognize and then to allow same-sex marriages, New York was responding "to the initiative of those who [sought] a voice in shaping the destiny of their own times." Bond v. United States, 564 U.S. ___, ___ (2011) (slip op., at 9). These actions were without doubt a proper exercise of its sovereign authority within our federal system, all in the way that the Framers of the Constitution intended. The dynamics of state government in the federal system are to allow the formation of consensus respecting the way the members of a discrete community treat each other in their daily contact and constant interaction with each other.
The States' interest in defining and regulating the marital relation, subject to constitutional guarantees, stems from the understanding that marriage is more than a routine classification for purposes of certain statutory benefits. Private, consensual sexual intimacy between two adult persons of the same sex may not be punished by the State, and it can form "but one element in a personal bond that is more enduring." Lawrence v. Texas, 539 U.S. 558, 567 (2003). By its recognition of the validity of same-sex
