It could depend on the regulations and the rewards. Marriage is a purely private Act that is Only commuted public for full faith and credit purposes.
It's commuted public because states want to incentivize the best formative environment for kids. Otherwise marriage is a complete bust and the states ought not to lose money on it at all.
No one is required to have kids nor be able to have them in order to get married. The basis of exclusion you've cited doesn't exist.
Yet you claim we should use this basis to exclude gays. That's an instant 14th amendment violation. The basis of exclusion is valid only if its applied equally and if the basis itself is valid. As all the infertile couples getting married demonstrate, the basis is invalid. Worse, you insist it should be applied to no one save gays. Any infertile straight couple that wants to marry can do so without incident.
Either both straights and gays would be excluded from marriage if they can't have children, or neither would. And the law is clear: no one is held to that standard.
Making it irrelevant, an invalid basis of exclusion, or a 14th amendment violation. Any of which render it legally invalid.
For those just tuning in, a child's best formative environment is where they have access to both their father and their mother.
Irrelevant to same sex marriage. First, because no child is required to get married. Making the capacity to have kids meaningless in terms of a valid marriage. And second, because same sex marriage and same sex parenting aren't the same thing. Forbidding the first has no effect on the second. Nor does allowing the first mean that the second can begin.
Gays and lesbians are already having kids. Before there was ever same sex marriage in California for example...there were already 40,000 children of same sex parents. Denying marriage to same sex parents doesn't mean that their children magically have opposite sex parents. It merely guarantees that these children will never have married parents.
Which even you admit harms these children.And still benefits no child. All while robbing gays and lesbians of a recognized civil right.
Um, no thank you.