In his State of the Union address last week, President Barack Obama touted renewable energy and declared that he would “not walk away from workers†such as Bryan Ritterby, who is employed by a wind-turbine manufacturer in Michigan.But in their rush to embrace the wind-energy business, Obama and numerous other politicians are walking away from rural residents such as David Enz and his wife, Rose. A year ago, the couple abandoned their home near Denmark, Wis., because of the unbearable low-frequency noise produced by a half-dozen 495-foot-high wind turbines that were built near the home they’ve owned since 1978. The...