Homosexuals assert that marriage is constituted solely by love and has no inherent connection to sexual differentiation or the children who may result from conjugal coupling. Furthermore, homosexuals believe that it is the presence of love that not only makes a union a marriage but that justifies government involvement in it.

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If marriage were constituted solely by love and the government were in the odd business of recognizing and affirming love, then why not recognize and affirm all forms of love by granting marriage licenses even to those in loving non-erotic relationships? What possible relevance to the government is inherently sterile erotic activity? What is the relevance of private, subjective, romantic feelings and inherently sterile erotic activity to any public purposes of marriage and therefore to the government's involvement with marriage?

When "progressives" argue that marriage is constituted solely by love and commitment and that it has no inherent connection to procreation, then they have to explain why two brothers should not be permitted to marry. Why shouldn't five people of assorted genders (or no gender) who love each other be permitted to marry? Why shouldn't the non-erotic relationship between BFF's be considered a "marriage"?

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But if reproductive-type sexual activity (i.e., coitus) is irrelevant to government interest in marriage then surely all non-reproductive types of erotic activity are equally irrelevant. And if all sexual/erotic activity is irrelevant to the government's interest in marriage, then logically those in relationships constituted by any and all forms of love must be permitted to "marry."

As homosexuals continually and rightly assert, men and women are objectively and substantively different, and those differences are anatomical, biological, emotional, and psychological. A homoerotic union is as different from a heterosexual union as men are from women. A heterosexual union is different from a homoerotic union in objective ways pertaining to the procreation, needs, and rights of any children that may result from the type of sex act in which only men and women can engage. This type of union matters to government.

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A man and a woman who engage in reproductive-type sexual activty (i.e., coitus) and conceive a child are in reality married because the central defining features of marriage are sexual differentiation and coitus. Marriage has a nature that predates the existence of formal legal institutions. Opposite-sex couples aren't married because the government issues them a license. The government issues them a license to formalize marriage, which becomes actualized through conjugal unions - not through inherently sterile mutual masturbatory activity. Couples who engage in conjugal activity prior to acquiring a marriage license are in reality married. It isn't the government that creates marriage. Government merely recognizes and regulates a type of union that in reality exists. We call that type of union marriage.

Since government does not create marriage, it cannot un-create or recreate it. Thus, legally allowing two people of the same-sex to "marry" does not mean they're married in anything other than a legal (de jure) sense. They are not married in reality because in reality marriage has a nature central to which is sexual differentiation, and without which a union is not marital.

If some silly government officials decided to issue dog licenses to cats because both dogs and cats have fur and four legs, some citizens - it is hoped - would recognize that dogs are in reality not cats because cats have natures that don't change because the government issues a license.