Gay rights activists argue that reproduction is a nonessential, disposable feature of marriage. At the same time many if not most of them strenuously deny being in favor of multi-partner marriage (polygamy, polygyny). When they make this claim I immediately come back and ask them, "Why only one two persons per marriage unit?" They hem and haw and try to change the subject.
Their insistence on limiting marriage to couples betrays their unacknowledged acceptance and affirmation of the heterosexual (reproductive) basis for marriage.
Gay marriage partners are pretending to be something nature has not fitted them to be: man and wife. Worse, they want the government to force the rest of us to agree with their pretense.
And in the final analysis very few of them will ever marry and even fewer will remain sexually faithful while married. It isn't the status and restrictions (including the burden of parenthood) of marriage that most of them want. It is the the coerced social acceptance of their homosexuality that they are seeking.
Actually, it seems much more likely to me that they fear that tying the change to marriage that they desire to such a change as legalizing polyamorous marriages would destroy their ability to get public opinion in their favor. I doubt it has anything to do with a recognition of the nature of marriage overall.
This legal status allows the homosexual lobby to demand that gay marriage be represented in public school textbooks and teachings as equal to heterosexual marriage.
This legal status allows the homosexual lobby to demand that gay marriage be represented in public school textbooks and teachings as equal to heterosexual marriage.