Regardless of how government may artificially define marriage in legal terms, marriage is really the union of the two different types of human beings -- males and females. Two members of the same sex cannot have a marriage relationship regardless of what some politicians might say.
Marriage unites members of the different sexes to form a unit that has all the human characteristics. Two men or two women cannot form such a unit. They are like two left shoes or two right shoes. A man and a woman fit together like two puzzle pieces. Two people of the same sex are just mirror images.
Males and females not only have anatomical differences, they have different biochemistries, including different skin PH, and their brains function differently.
Males produce chemicals called pheromones that are beneficial to females. The research on how males benefit from pheromones women might produce is less clear because most research on female pheromones deals with how they attract men. Research does indicate that men benefit from marriage and the benefits may involve biochemistry.
The fact that men's and women's brains function differently complicates relationships, but provides the couple with the benefit of viewing the problems faced from two different perspectives. This difference stimulates the relationship and makes the opposite sex more intriguing. A member of the opposite sex is more likely to respond "unexpectedly" to a situation than a member of one's own sex.
Having sex with a member of the opposite sex allows an individual to experience the physical sexuality of the opposite sex. Having sex with a member of one's own sex provides no such benefit.
To women, men are strength. To men, women are energy.
CBers have long referred to a man's wife as his "better half" and a woman's husband as her "other half". A husband or a wife is half of a unit. Both together are a complete unit.
Homosexuals who want to have a marriage relationship like heterosexuals, possibly including having children, are implying they really want to be heterosexuals.
When a man calls his partner a wife he is indicating she is his female half. For a woman, a husband is her male half.
A woman who calls her partner a "wife" is implying the partner, rather than her, is the female part of the unit making her the "male". A woman who calls her partner a "wife" and expects her partner to have any children is acting like a man and may really subconsciously be a transsexual rather than a homosexual. She may call herself a lesbian because she misunderstands the reason for her behavior.
Some male homosexuals claim that they look at other men the same way men look at women. However, scientific research indicates that in their brains, homosexual men "look at" other men the way women look at men. This tendency could indicate that at least some homosexual men might actually be transsexuals. They call their partners "husbands" because subconsciously they really want to be women.
Heterosexuals desire a marriage relationship to gain a feeling of completeness by being part of a unit that contains a member of each sex. Homosexuals cannot become complete by having a relationship with a member of their own sex, even though they may think that calling a relationship a marriage gives them what heterosexuals have in a marriage.