The deep thinkers at the Maine Marriage Alliance point to a survey about monogamy among gay male couples and come to this conclusion:
Legal recognition for openly non-monogamous gay unions would effectively destroy the taboo on adultery. The result is a continual downfall of families and society. Stanley Kurtz, a research fellow at Stanford University explains: “What we need to understand — but do not — is that gay marriage will undermine the structure of taboos that continue to protect heterosexual marriage — and will do so far more profoundly than either the elimination of sodomy laws, or the general sexual loosening of the past thirty years. Above all, marriage is protected by the ethos of monogamy — and by the associated taboo against adultery. The real danger of gay marriage is that it will undermine the taboo on adultery, thereby destroying the final bastion protecting marriage: the ethos of monogamy.”
The survey they cite, a 1996 study by gay researchers Marshall Kirk and Hunter Madsen reportedly concludes that “the cheating ratio of ‘married’ gay males, given enough time, approaches 100%.” The Maine Marriage Alliance does note that this “outside sexual activity” occurs by agreement, but really, so what?