You don't make sense.<quoted text>
Your marriage is a "mutually sterile, pointlessly opposite gendered half of marriage". And since you believe "marriage is a cross cultural constraint on evolutionary mating behavior" you have no business being married.
You can't reproduce.
Hand in your marriage license and dissolve your union.
You can remain partners by setting up any legal needs through an attorney. But you have no reason to continue calling your union "marriage".
See how that works?
I have two sons.