This discourse is what irritates the Social Democrats most. "We share many values, but we doubt whether their anti-establishment position will be compatible with the politics of compromise," says Kathleen Van Brempt, a heavyweight among European Social Democrats. The Belgian MEP admits to "sympathy" for this "traditional left" but urges them to reconsider their stance contrary to negotiating with other groups: "In Europe, to take your proposals forward, one must reach agreements with other forces."