Gay marriage is not on the horizon in Michigan and there is no need for voters to amend the state constitution in a way that would unfairly harm some citizens. In drafting Proposal 2 to ban same-sex marriage, the Citizens for the Defense of Marriage went well beyond what was necessary to achieve that goal. For example, if the proposal is adopted Nov. 2, it could end health and other benefits extended by some public employers to gay couples, and perhaps encourage private companies to do likewise. Additionally, language in the proposed amendment threatens those same domestic partner benefits for...