The history of mankind begins with a wedding in the garden. The relationship between God and Israel is analogized as a marriage. The re-creation began with the miracle at a Wedding in Cana of Galilee. The relation between between Christ and His elect congregation is analogized as a marriage. Finally, history is consummated with the Marriage feast of the lamb.
When marriage is perverted, foundational Christian theology is destroyed. Whenever foundational Christian theology is destroyed, marriage and the family are destroyed.