The rest of your post was quite valid personal opinions. This one part I quoted though, I must disagree with. Gay men can, and often do, find surrogate mothers. Lesbians have artificial insemination. Alternative methods, yes, but still workable and still produce the same emotions.
I think the situation you described may be more appropriate for couples who adopt, heterosexual or homosexual.
But to say that homosexuals aren't capable of the emotions you describe is just silly.... and you're talking in absolutes again.
There are questionable issues within both the gay and straight populations. The difference is, usually the gays with the issues don't want the kids in the first place so that is a self solving problem.
One of the problems with adoption right now is that white babies are in the highest demand, but black babies stay up for adoption for years. Sick black babies are doomed to temporary foster care for most of their short lives.
It is an unusual tendency that gay couples are less picky on which color child they adopt. They'll often even take the sick babies that no one else wants.
These are children who would otherwise live in foster homes or orphanages. Would you deny them a loving, stable, pair of dads?