Argument: Gay marriage devalues the institution of marriage
David Blankenhorn. "Protecting marriage to protect children." LA Times. September 19, 2008: "Legalized same-sex marriage almost certainly benefits those same-sex couples who choose to marry, as well as the children being raised in those homes. But changing the meaning of marriage to accommodate homosexual orientation further and perhaps definitively undermines for all of us the very thing -- the gift, the birthright -- that is marriage's most distinctive contribution to human society. That's a change that, in the final analysis, I cannot support."