Some McDonald’s workers who say they were fired because of their race are suing the fast-food giant, accusing it of dodging responsibility for the discrimination and harassment they say they endured. The workers said in a federal complaint filed Thursday that about 15 black employees of some southern Virginia restaurants run by Soweva Co. were fired last May after several white employees were hired. Many of those fired were told by Soweva owner Michael Simon that while they were good workers, they “didn …