Joseph, from what I have seen of your discussion, you have argued yourself around to saying that you believe a couple, no matter what the sexual orientation, should be stable.
I don't think anyone here would really take issue on that. Unfortunately and for many reasons, it doesn't always work and you have seen examples of that here.
Cherri lost her mother at an early age and her father had to take on both roles.
Trieste's parents split up and her mother had to take on both roles for a large portion of her childhood years.
My own story is that I was divorced after 15 years and left with an 18 month old daughter and met my new partner when she was a little over 2 years old, her 'step father' is a far better role model than her real father would have ever been.
And yet, in comparison, of the four stable homosexual relationships, which can be compared, I know only one has broken up.
(In the longest they have been together now for over 30 years, the shortest coming up to 10)
Children need stability, sometimes that comes from two parents, aunts and uncles, grandparents, a single mother or father, a gay couple, a careworker in a local home.
In my mind it makes no difference at all who gives a child that stability, what matters is that they get it.
However, I would take issue on the idea that men and women, in either a gay or heterosexual relationship (either married or living as man and wife), should be pigeon holed.
It seems to me that you are saying that there MUST be a male and female role model, whether in a heterosexual or homosexual relationship and it doesn't really work that way.
Many women are now the 'bread winners', while many fathers choose to take over the running of the house and bring up children.
Many men now do far more housework than was traditionally expected of them in the fifties and sixties.
Even more choose to share the burden of the drudge in life and the caring of their children.
Why should this not apply also to homosexual 'two dad/two mum' relationships, why does there have to be a feminine male or a masculine female?
Things are changing, in both the heterosexual and homosexual worlds, people need to begin to think out of the box and not judge what a person is today based on what they were 30/50 years ago.