A recent update from the Family Research Council takes an interesting tactic from the point of view of bad rhetorical moves. What do you do if you want to convince people that you're on the side of families? Probably not word things in such a way that you sound as if parents of adopted children aren't parents. Not a good idea. Yet this is exactly what the FRC has done (and I must say it's not the first time I've seen this from mainstream opposition to gay marriage).
It is outrageous that courts in some states have become complicit in this denial of biological reality by allowing homosexual couples to have custody of newborns and birth certificates that mislead about the true parentage of the child.
So what counts as true parentage? I accept that birth certificates of adopted kids ideally ought to list the biological parents, for a lot of reasons. But I would never in my right mind suggest that this is the same thing as saying birth certificates ought to list the true parents, as if adoptive parents aren't the true parents of the child. So here's a hint to the FRC. If you're going to argue against adoption by gay people, it's not going to endear people toward thinking of you as a legitimate family advocate if you also in effect include adoption by straight married couples as part of your target by speaking of them as if they're not real parents.