The "stalwart defenders" of State-Sanctioned Marriage are virtually doomed to fail. When you make Caesar your god, he will stab you in the back -- every time.
If even one State grants full Legal legitimacy to homosexual marriage and overcomes a Constitutional challenge in the USSC, then it's Belshazzar in reverse -- the writing is on the wall.
Meanwhile, the Libertarians have observed (correctly) that if Marriage and State are separated, the entire "field" of battle is cleared. Both Abram and Moses enjoyed healthy Marriages with Sarai and Zipporah (respectively) without the Sanction of the State; likewise will heterosexual Christian marriage survive without the approval of Caesar.
Heterosexual Christian Marriage needs no "State Marriage license" to be Valid, Licit, and Holy. The Benediction of a duly-ordained Presbyter and the Witness of the groom and bride's respective Clans will acomplish that much, in the eyes of God. But eliminate that State Marriage License entirely, and the homosexual "couple" no longer has a State-sanctioned piece of paper to wave in Jerry Falwell's face... they have only their own "Private Contract", which no Christian church needs honor.
Without the Approval of Caesar, where's the "fun" in that??
Eliminate the State Marriage License, and you will see the "demand" for Homosexual Marriage drop by 90% or more.
Therefore the skillful leader subdues the enemy's troops without any fighting; he captures their cities without laying siege to them; he overthrows their kingdom without lengthy operations in the field. ~~ Sun Tzu, "The Art of War"
Delusional fanaticism.
If marriage once again became available only sacramentally, wouldn't we see a rise in "Vegas" style churches that exist only to grant speedy divorces and homosexual marriage?
My mother (a catholic) married an agnostic. After 7 kids, the state granted a divorce, after the divorce, the Catholic Church granted my mother an annullment...saying that my father never seriously intended to become a Catholic. This was in 1970- before the big divorce boom.
What role do you see for the church, if it steps aside from this battle in this nation?