I was barren then hit menopause. Does your statement mean that I have no reason to be married?
I have friends who are in monogamous heterosexual relationships, i.e. marriage, who have had children who only bore the genetic imprint of one parent. These were people who wanted children and used another man's semen through artificial insemination in order to accomplish it. I also have lesbian friends who are in a monogamous relationship who have done the same thing.
The hetero couple has the protection of the law if one spouse decides to quit the relationship and wants the child(ren). The gay couple doesn't because of archaic laws and people such as yourself who feel the need to interfere in other peoples' lives because of their preference in the bedroom. Frankly, sex, while rewarding, is only a small part of a marriage.
I've seen many of the guys here at MJ's complain that there's no sex after marriage. While a joke, it has validity. In the day to day challenge of maintaining a marriage, particularly with children, sex is placed on the back burner for a time when both participants aren't too tired, too stressed or may be interrupted. I would assume it's the same for a gay couple.
Why is it such a big deal to those who can legally marry to prohibit those who can't?
Sorry for continuing this off-topic, so let me add this. If there are people who want to legally share their love, lives, investments, etc. with another, then there should be a union that allows for that. Honestly, I don't think I could handle another husband (or a wife, for that matter) but if my neighbor wants it, who am I to say "no"?? It's simply not my business.