Then a single parent would be even worse than a gay couple because at least with same-sex parents, children get to see an example of how adults who love each other should treat one another. There are usually role models around in either sex though, and I do believe role models of different genders and sexual orientation are important, and I believe available role models (and possibly even bad examples!) should include others in addition to parents.

Unfortunately, kids grow up in abusive or otherwise disfunctional relationships, and I think having parents of the same sex who treat each other with love is rather better than having a mommy and daddy who scream all the time.