[lonestar67]

First amendment :

Congress shall make no law respecting an establishment of religion. . .

Marriage is an establishment of religion

Gay marriage is a government ruling regarding the religious establishment of marriage

American civics allows massive freedoms to transgress almost all known Christian ethic. To pretend we are close to or on the verge of theocracy is absurd and betrays gross ignorance of such governance would look like. That ignorance is further betrayed by the abundance of such odious governments around the world that are rightly opposed by America.

[aruanan]

Congress shall make no law respecting an establishment of religion. . .

Marriage is an establishment of religion

This is an example of amphiboly. You've kept the same spelling of a word in two sentences but changed the meaning between them. In the first sentence, "an establishment of religion" is a religious establishment, ie., a church, as in "Church of England," Methodist, Anabaptist, etc. In the second sentence, you used "establishment" as "a relationship sanctified by a religion." This change in meaning makes your argument null.