The Republican Party 2012 Platform is here.
The platform now says that the military should not become "a platform for social experimentation."
Also, search for the phrase "Preserving and Protecting Traditional Marriage". There is an interesting sentence about the "lack of family formation" (people not having children, it seems, as well as simply not marrying) leading to "more government control of all citizens in all its aspects". Is that an allusion to filial responsibility laws?