1) Marriage as a legal contract is simply for two people to commit to each other in order to gain certain legal benefits and to clarify certain questions. For instance, one reason for two people to get married legally is to be able to see each other in the hospital when if they aren't married, they could be denied this right. That's only one example, but the point is marriage is just a legal contract to sort out some legal issues.
No, marriage is a social institution that exists for some purpose or other. By merely asserting that marriage is "a legal contract for two people to commit to each other in order to gain certain legal benefits and to clarify certain questions [whatever these questions are]," you've simply begged the question and assumed that marriage exists for x and not for y. Another thing we might ponder on the subject is: why does the state offer these legal benefits you mention in the first place? Surely it doesn't tautologically offer them just to offer them, as you seem to imply. As for the mention of hospital visitation rights, one needn't be married to obtain such rights. There exist legal resources to obtain those rights without having to get married. Furthermore, this is not at all a compelling interest that the state may be interested in furthering, as this is a mere private matter between some individuals which doesn't concern the public good. Marriage doesn't exist, to put it simply, so that Susan can visit Bob when he comes down with a case of explosive diarrhea, or so that some individuals can "declare their love for one another" or so that you can put on an expensive metal band on your finger and invite a select group of easily-inebriated socialites to some fancy wedding reception in a Thai resort to gain their favor. These are all private reasons one may have to marry, to be sure, but none of these reasons amount to any one public purpose for having an institution in the first place. We may also wonder on what grounds we could sensibly restrict such a "contract" to only two people. For the only reason that marriage has been traditionally restricted to two people is because of some procreative clause or other, namely, that marriage exists to protect a child's entitlement to have a relationship with his own mother and father. But, for obvious reasons, you won't accept such a clause (indeed, you will outright reject it). So what basis exists now for the limiting of this ostensible "contract" to two people? Surely more than two people can enter a contract, right? All one could do is simply impose some utterly arbitrary legal threshold to limit "marriage" to two individuals. But not only would that open the door to all manners of incestuous "marriages" and the like, but that would have no rational basis to maintain and would so be completely open to challenge. Or perhaps what the supporter of same-sex marriage could do, just as perhaps he (erroneously) accuses the opponent of same-sex marriage of doing, is damn the torpedoes, dig his heels in and provide a sort of inchoate
stare decisis defense to maintain the limiting of "marriage" to two individuals, leaving his position utterly arbitrary and open to challenge.
Therefore, according to you, not allowing same-sex marriage is discrimination.
Not quite.
2) Gay couples are going to live together no matter what, and they're going to have children no matter what.
A couple points on this: (I) no one is trying to disallow them from living with one another, so the first comment amounts to a simple statement of a banality. (II) Surely a couple of men or a couple of women will
not have children in any meaningful sense. Rather, to "have children," a same-sex couple must either adopt or otherwise impregnate some other person of the opposite sex. But then the child is in no meaningful way "theirs" (that is, the same-sex couple's). Rather, this child is either the child of some other man and a woman, in case of adoption, and at most only one of the individual's in the same-sex couple in the case of fertilization by other means.
Disallowing same-sex marriage isn't going to stop them from doing these things. All it does is disallow them a way to sort out legal matters, as I mentioned above.
As a matter of justice (among other reasons), I don't think that children ought to be treated as a commodity to be given to adults simply because they want a child. I also don't think that we should intentionally design a family in which a child is intentionally deprived of either a mother or a father, or deprived of being raised by his biological parents. This leads me to oppose IVF and other means of artificially creating a child in most if not all cases.
3) Same-sex marriage and homosexuality are not immoral according to any morality based on harm. You can argue it's immoral or pernicious, but that's just a personal opinion of yours. For it to be useful as an argument against same-sex marriage as a legal contract, you'd need to prove some kind of verifiable harm. Legal contracts are generally not concerned with morality, but instead with practical concerns of harm.
This is just silly. If one can "argue that it is immoral or pernicious," then it is in no sense a mere "opinion" of the one presenting such arguments but rather an objective matter which reason which determine whether is true or false. Another point: as I outlined in a prior post, you can most certainly develop a consequentialist argument contra same-sex marriage and homosexual sexual acts. Just consider, for example, that if children require a mother and a father for their well-being, then instituting same-sex marriage and thus promoting the intentional designing of families in which children are intentionally deprived of a mother and a father (if not both his biological mother and father) would result in a great harm to such children. To add further, I notice that you add that "same-sex marriage and homosexuality are not immoral according to any morality
based on harm." But what good reason do you have to so eagerly rule out ethical theories which are not "based on harm" (which presumably means some form of consequentialist ethical theory or other)? That is just plainly and egregiously question-begging, Magic Man. You are also assuming that marriage is "just a legal contract" when it isn't.
4) In what way are the arguments of same-sex marriage advocates incoherent of inchoate?
I provided an argument for this, but you knew that already.
Marriage is a legal contract between two people for the purpose of deciding some legal issues.
Once again, we may question whether it is the case that marriage is "just a legal contract". We may also question what grounds would permit one to limit such a "marriage" to only to people or if there are any such grounds at all. And so forth.
Letting straight couples access this contract but not gay couples is discrimination.
Perhaps it is, perhaps it isn't, but, again, why think that marriage is "just a contract between two people"?
1) Marriage is already a contract between two people. Changing the genders of the people involved doesn't present any legal challenges. Allowing same-sex marriage doesn't require any other legal changes to accommodate it. Polygamous marriages present a different challenge, requiring all kinds of issues to be sorted out in order to make them work.
More question-begging.
2) With that said, if people want this kind of marriage and the legal issues can be worked out, many supporters of same-sex marriage have no problem with it.
The argument I provided is strong, I think, because the supporter of same-sex marriage, if he is willing to hold to his support of same-sex marriage, must deny either premise when doing so is problematic for him. If he denies P1, he will usually deny that one ought to approve of same-sex marriage on the grounds that being "lovingly committed" to someone else is a sufficient condition for being married. Doing so, however, makes it so that the supporter of same-sex marriage has no leg to stand on, so to speak, to provide a reason as to why we should allow same-sex marriage anyways. If he denies P2, however, then he has simply embraced the reductio and demonstrated his position to be absurd as it entails that he support any conceivable configurations of individuals who are "lovingly committed to one another" to be able to "marry," even if perhaps only in principle. You seem to have done the latter.
Therefore your argument fails on two levels.
I fail to see how so. I don't see much in the way of you disagreeing with either premise with the exception of the last paragraph in which you seem to deny P2. Denying P2, however, is problematic for the reasons I mentioned above.