Frances Kelly describes herself as a "conservative who lives and writes in the liberal land of Vermont" and published this at Renew America:
"...If we redefine marriage to include same-gender couples, we're saying there is no important difference between the partnership of two men, and the union of one man and one woman. In other words, women are disposable. They can be excluded from marriage and replaced with men. This is gender discrimination. This eliminates femininity and motherhood from the basic family unit. This is anti-gender.
Example: Sex advice columnist and SSM advocate Dan Savage likes to refer to a woman's birth canal as the [click here to see the unedited, graphic quotation]. If a Christian like Chick-fil-A president Dan Cathy uttered such a sexist slur, the media would rip into him. But because Savage speaks for the gay community, he gets a media pass and an invite to the White House.
At the same time, allowing unigender couples to marry means that two women can marry each other, eliminating men from the family. Again, this is gender segregation and gender discrimination. This is anti-gender."