I’ve been racking my brain, and I just can’t figure out how my marriage is harmed by domestic partner benefits. Fortunately, that question is getting a thorough examination in the California case, Perry v Schwarzenegger, where the judge asked anti-gay marriage advocates to provide evidence that traditional marriage is harmed by gay marriage. When the judge pressed the lead attorney to identify how straight people would be affected, he responded, "Your honor, my answer is: I don't know.” He was certain, however, that children are better off in a stable home, whether that is a traditional union or a civil union.
Day, Richard E., "Professor Supports Benefits Decision: On Domestic Partner Benefits at EKU" (2010). Curriculum and Instruction Faculty and Staff Scholarship. Paper 51.