For the purposes of persuasion, I find your choice of words in some cases to be unnecessarily blunt. The word sodomy is a gigantic distraction, and you don't need it. I think the word dysfunction could be avoided.
I *am* arguing that the state has an interest in promoting families, promoting *functional* and *organic* families that arise from heterosexual unions, not the ones that arise from some dysfunction and that help populate homosexual-led families.