Does the bestselling book “Hillbilly Elegy” unfairly stereotype Appalachians as uniformly violent and poor? That’s the case Mark Ferguson makes on this week’s episode of “The Front Porch.” Ferguson says things in most of Appalachia are improving, and the book paints an overly negative picture of our region. The book has gotten a lot of buzz – we talked about it on The Front Porch recently and interviewed Vance for a recent episode of our show Inside Appalachia. Ferguson is a native of Roanoke,