DEKALB COUNTY, GEORGIA—To get to Sugar Creek Golf Course Park in South DeKalb County, Georgia, near Atlanta, you have to brave a drive down a gravelly road walled on both sides by a mess of overgrown weeds, brush, and a punishment of haggard woodlands. The passageway opens into a parking lot whose surface has seen better Saturday afternoons. Holding court is a small congregation of men huddled near a minivan, eating from Chinese take-out cartons, sipping beers, almost as if they were tail-gating…