As I said above, how is equal marriage destroying this so called "optimal structure for raising children"?
Ummm.. 2 gay men bringing up young girls? I don't think so... Girls need their Moms, especially when they reach pubity. Can think of similar consequences for a boy being brought up by two lesbian women. Not saying it can’t be done, but its not in the child’s best interests. End of story.
Lots of things aren't in a child's best interests but are still allowed to happen. (Legally)