The case to legalize same-sex marriage seems to come down to a basic question of "rights." LGBTQ people, we're told, have the same right to marry as heterosexuals. In fact, they do: Everyone, no matter their sexual orientation has a right to marry a person of the opposite sex.
But that's not the point here. If it all comes down to equal rights, then how do we reconcile the "right" to same-sex marriage and the right of children to benefit from a family composed of a male father and a female mother?
Here's how the Foundry puts it:
Redefining marriage would further distance marriage from the needs of children. It would deny as a matter of policy the ideal that a child needs a mom and a dad. We know that children tend to do best when raised by a mother and a father. The confusion resulting from further delinking childbearing from marriage would force the state to intervene more often in family life and cause welfare programs to grow even more.
Here is the amicus brief filed by the authors in favor of traditional marriage.