I agree that gays are capable of bringing up good kids...but, two parents of the same sex, still falls short in the diversity of a family structure.

with two different genders in a family, kids can learn the qualities of both genders in this world, instead of being exposed to just one side of it.
Of course its idealistic, but I think in this day and age, thats not so wrong.
But thats just for respectable people...as for all the other pieces of shit,
they should not breed, and probably just be chemically castrated.
In fact, maybe they should make a law that says, yes you can marry, and adopt, but you must castrate yourself so your gay genes will not be passed along, even in a test tube.