Amid the turmoil caused by the suspension of “Duck Dynasty’s” Phil Robertson in relation to an interview he gave with GQ, an outpouring of support has emerged from those defending the bearded A&E star. Which only prompts one to wonder whether these people really know whom exactly it is they’re defending. However real and natural it might appear, “Duck Dynasty” is a sitcom. Not all the dialogue is written, but as even the Robertsons freely admitted on the “Today” show, “They come up with ideas and we just get to be ourselves in the situation.” So while Robertson can be...