The "indispensable means" argument is not a compelling objection to same-sex marriage

"Heterosexual union is the indispensable means by which humans come into existence and therefore has special social value (indeed, the greatest possible social value because it is the first precondition for society)."1.a I agree with your argument that "Heterosexual union isn't synonymous with a man and a woman having sexual intercourse of having a child", because heterosexual itself isn't only talk about activity. it talks about behaviour of human. but what I would to say to you is, the capability of homosexual couples as you said is 'hanging' on the technology, which is still, uses different gender to show result. and it means that the fertility itself isn't go far away from its natural cause. what have changed is only the procedure.this is based on surrogacy explanation at http://www.advancedfertility.com...based on that I said that to reach the fertility goal as a couple, there should be a 'contact' in reference of sex between man and woman, which is naturally become a characteristic of heterosexual.1.b about raising a child, as we know that there are two genders exist. male and female, that have different characteristic and different way to raise them. once again I am very agree with the idea that two person with same gender can raise the kid. but in fact, parents are role models for their kids.http://www.nhcs.net...http://www.oh-pin.org...I don't talk about sexual behaviour. I don't talk about how they will do in their school. but, as a different gender with different behaviour, child are supposed to be taught and grown by their capabilities and condition.There are so many cases of misbehaving children come from failure parentsI don't talk about the incapability of homosexual couple of raising kids. What I mean here is how male and female are supposed to behave as themselves, based on their condition, body.Of course the homosexual couples would try to cover the role. but only as actor/actress. and nothing is better than natural parents.My conclusion for first point you have told is yes, there are capability of homosexual on these precondition, BUT it is still can't be considered as precondition BECAUSE they still have to do 'heterosexual way' in order to gain them (having a child - still need surrogate and in vitro, raising a child - act as mother and father, not as themselves)2. And obviously, as I said before, homosexual don't have the ability to have children if they don't do something like surrogate or anything else (that is obviously is heterosexual way).Heterosexual, even if they are not capable to do so, are presumed as capable. who knows that 'hey, he is infertile, don't marry him' cause there is no one tested him before. or 'he is such a jerk, don't marry him'. Nobody who haven't tested or tried for him/her would talk something like that. Marriage is happen because of presume that the couple is eligible enough to achieve two first precondition. BECAUSE, couples that is going to be married have presume about how capable is their mate in this. no one ever say ' I would marry that jerk ' or ' he is barren. I would like to have child from him'."What has special value to human society deserves special social recognition and sanction."Heterosexuality has a special value. the surrogate are based on heterosexual sex's objects - sperm and ovum which means, that it is not possible for fertilization happen without that two objects. without the fertilization, no birth. no birth, no human anymore. Still, it counts as doing a heterosexual sex without penetration using penis. So, we have to keep the heterosexual for mankind. we have to recognize that the heterosexuality makes us all."To deny the special social value of what has special social value is unjust."it's unjust by judging at your argument. you forgot about how fertility works, how about parenting works, and how parents from homosexual couple still follow heterosexual way (differentiation of gender)So you just denying it.------------------------------------------------------Conclusion---------------------------------------------------------------Still, humankind needs of heterosexuality is absolute, that means it a indispensable means argument. About the capability, still the capability of parents raising children is back to how well they do it, to fill the role of mother (as gender role for female) and father (as a gender role for male), which is heterosexual way.Homosexual maybe is more liberal on sexual orientation, but they still have to behave like heterosexual way (masculine and feminine side)