gay marriage did carry a threat, because, as we have said, it overturned the understanding that marriage was something antecedent to government. On that antecedence rested the inviolability of marriages and families, the convention that what they did, how they built their little micro-community of love, was none of the government’s business. Overturning this understanding did not immediately damage any heterosexual marriages. But it diminished and threatened marriage as an institution.
