JohnStuartMill wrote: 3) Even heterosexual couples that are obviously infertile are eligible for marriage, while lesbians (who give birth in larger proportions than you may realize) are not. This implies that there is actually some other reason that marriage laws are the way they are. Given the long, sordid history of discrimination against homosexuals, the likelihood that this reason is "discrimination" is far too high to justify differential treatment for this group in this circumstance.
The Supreme Court of Indiana addressed this contention (though stated in a much more intelligent and more comprehensive way):
"Finally, they [the plaintiffs] claim, and we do not dispute, that large numbers of same-sex couples in this state are choosing to raise children together, either by adoption or taking advantage of assisted reproduction technologies. Based upon these facts, the essence of the Plaintiffs’ argument is that it contravenes the central purpose of the Indiana Family Law Code to deny marriage to same-sex couples because although many of them are raising families, they are precluded from the multiple benefits associated with marriage. Likewise, the Plaintiffs essentially contend, it actually would further the State’s interests in marriage and the strengthening of families to allow same-sex couples to raise families within the institution of marriage.
"This argument does not recognize the key difference between how most opposite-sex couples become parents, through sexual intercourse, and how all same-sex couples must become parents, through adoption or assisted reproduction. Becoming a parent by using 'artificial' reproduction methods is frequently costly and time-consuming. Adopting children is much the same. Those persons wanting to have children by assisted reproduction or adoption are, by necessity, heavily invested, financially and emotionally, in those processes. Those processes also require a great deal of foresight and planning. 'Natural' procreation, on the other hand, may occur only between opposite-sex couples and with no foresight or planning. All that is required is one instance of sexual intercourse with a man for a woman to become pregnant.
"What does the difference between 'natural' reproduction on the one hand and assisted reproduction and adoption on the other mean for constitutional purposes? It means that it impacts the State of Indiana’s clear interest in seeing that children are raised in stable environments. Those persons who have invested the significant time, effort, and expense associated with assisted reproduction or adoption may be seen as very likely to be able to provide such an environment, with or without the 'protections' of marriage, because of the high level of financial and emotional commitment exerted in conceiving or adopting a child or children in the first place.
"By contrast, procreation by 'natural' reproduction may occur without any thought for the future. The State, first of all, may legitimately create the institution of opposite-sex marriage, and all the benefits accruing to it, in order to encourage male-female couples to procreate within the legitimacy and stability of a state-sanctioned relationship and to discourage unplanned, out-of-wedlock births resulting from 'casual' intercourse. Second, even where an opposite-sex couple enters into a marriage with no intention of having children, 'accidents' do happen, or persons often change their minds about wanting to have children. The institution of marriage not only encourages opposite-sex couples to form a relatively stable environment for the 'natural' procreation of children in the first place, but it also encourages them to stay together and raise a child or children together if there is a 'change in plans.'
"One of the State’s key interests in supporting opposite-sex marriage is not necessarily to encourage and promote 'natural' procreation across the board and at the expense of other forms of becoming parents, such as by adoption and assisted reproduction; rather, it encourages opposite-sex couples who, by definition, are the only type of couples that can reproduce on their own by engaging in sex with little or no contemplation of the consequences that might result, i.e. a child, to procreate responsibly. The State recognized this during oral argument when it identified the protection of unintended children resulting from heterosexual intercourse as one of the key interests in opposite-sex marriage. The institution of opposite-sex marriage both encourages such couples to enter into a stable relationship before having children and to remain in such a relationship if children arrive during the marriage unexpectedly. The recognition of same-sex marriage would not further this interest in heterosexual 'responsible procreation.' Therefore, the legislative classification of extending marriage benefits to opposite-sex couples but not same-sex couples is reasonably related to a clearly identifiable, inherent characteristic that distinguishes the two classes: the ability or inability to procreate by 'natural' means. (see Morrison v Sadler)
Thanks, -Wade Englund-