I'll agree with that. Marriage ceased to be the firm idyllac foundation that most people claim a long time ago. Society cannot stand without the family unit, but straights started trashing the institution a long time ago. If a higher proportion of gay "marriages" stand the test of time than do hetero marriages, then more power to them. I'm happy to see people committed to each other.
Why wouldn't they? Men have a far easier time living with men than with women, and vice versa. But that's hardly a basis for creating the adults necessary to sustain a culture.
That's why civilizations that embrace homosexuality always have faild shortly (in an historic perspective) thereafter.
It takes a real man to live with the differences a woman brings into his life. And it takes a special kind of love.
Shalom.