The entire movement inside the visible Church to stress the unitive aspect of marriage in hope of counteracting modern social ills is not only doomed to failure, it's making the problem worse.
When I read modern theological comments on marriage what is striking is the supernaturalization of the natural. Marriage is described as some kind of mystical bond of man and woman. When in reality marriage is an act of justice, it's a contract grounded in man's nature as corporeal living creature where all living creatures eat, grow and reproduce. Which is in turn what marriage is ordered toward, i.e. eating, growing and reproducing in society because man is by nature social.