Vow-renewal ceremonies are always inherently offensive, but Seal and Heidi Klum really took the (Hostess, cream-filled) cake when they decided to give their ceremony a “white trash” theme. Which begs the questions: Is the concept of white trash offensive? Is it mostly or only offensive when implemented by a German model and a British black man wearing a mullet and American flag jacket? Here’s the thing with Heidi Klum: She’s never been one to tread carefully when it comes to issues of race, either because she’s German and doesn’t understand America’s brand of political correctness, or because she’s kind of...