“Something is changing on social issues,” Mr. Guenolé said. “It is not droitizaition,” he said, using the French word for the turn to the right. “It is Le Penization. Becoming closer and closer to Le Penisme, the thinking of Jean Marie Le Pen, which is an ideology of hatred against Jews, Arabs, and foreigners,” he said, referring to Ms. Le Pen’s father, the National Front’s founder, whose views on foreigners continue to dominate the party despite efforts by his daughter to push him to the margins.