In short, there is no conceivable way to separate social institutions from economic factors, or economic factors from social institutions.
Then, of course, there is the fact that "same sex marriage," is an oxymoron. The whole concept of marriage involves the endeavor to sanctify human procreation, and institutionalize the multi-genreational concept of the family--which is the basic building block of both a healthy society & a healthy economy.
William Flax
Cultural marxism always leads to economic and political marxism.