I promptly forgot about that statement until today, when I discovered via Eve Tushnet that NRO's Stanley Kurtz has written two responses to this document: Part I, Part II
Bronski said that he and his fellow family radicals were tired of being treated like "skunks at a garden party" for honestly owning up to their radical reasons for supporting gay marriage. Bronski then told the story of a radio appearance in which his conservative opponent had claimed that gay marriage would "change society as we know it." Instead of denying it, Bronski agreed with this family traditionalist that gay marriage would indeed provoke a broader cultural transformation, adding that this was a good thing. "That afternoon," Bronski recalled, "I received a barrage of e-mails from marriage equality supporters complaining that I had committed a major faux pas and should not do media on the issue of marriage again unless I was willing to state the "official" marriage equality line, which is that gay marriage is about nothing more than equal rights for couples who love one another."
Kurtz analyzes the self-censorship of the radicals and their cynical alliances with earnest, if deluded, pro-gay marriage liberals out to tame homosexual relationships.