Retailers are going mainstream with ad campaigns aimed at gay customers in an effort to get their merchandise into more consumer closets. “Retailers, particularly fashion retailers, always like to be ahead of the curve,” said local retail analyst Chris Boring of Boulevard Strategies. “In 2012, supporting gay rights and accepting gays is pretty mainstream.” In one high-profile move, J.C. Penney is running an ad for Father’s Day featuring a gay Texas couple and their two children. A month ago, the retailer had an ad for Mother’s Day showing a lesbian couple with their children. The iconic retailer also has tapped...