However, Manfred was made aware of his Jewish identity in a negative sense by others regularly. Almost all of his friends were Roman Catholics. Even if they got along well and they accepted him, there were statements made during major arguments that were directed against his Jewish identity. Then suddenly he became the Jew whose ancestors had crucified Jesus.

By other children who were not so close to him, he was occasionally insulted with wild anti-Semitic terms. Thus, anti-Semitism was already a part of his everyday life in his early childhood.