At Auschwitz, they were tattooed. They didn't have names or surnames anymore. They had numbers written with ink on their skin, just like animals.
For example, Art Spiegelman's mother had also been deported with her husband. She had survived, but decided to commit suicide few months after her release. These few months at Auschwitz had indeed broken her mentally. For the survivors of the Shoah, the suffering/dissarray was unbearable, and many of them decided to put an end to their life.
Throughout the story of his father, Art Spiegelman kept the memory of the victims alive. He transmitted their feelings of fear and suffering.
In conclusion, I think that we musn't forget these events so that they never reoccur. That's what the duty of memory is about. It's a moral obligation to remember the suffering of these victims. We have to transmit these memories for future generations.
Remarques: Je me suis permise de modifier certaines tournures de phrases. J'ai bien gardé le sens d'origine. Aussi, au début de ton texte, je te conseille de préciser qui sont ces "ils".
