I don't think remembrance is irrelevant.
People can remember that Jimmy was killed, if they want to.
They can remember that the man in the concentration camp, who survived, had paraffin injected into him. They can remember that the doctor who was there when the camps were relieved, said that the prisoners were frightened of having injections, because they, the prisoners, Jewish and other people, had been injected with paraffin so that they'd burn more easily. c.f. Forgotten Voices of the Holocaust and Women of our Century - something like that.
They can remember to watch some of the programmes about the history of it all, dull though the programmes may be considered. Not as exciting as 'Naked Attraction'.
They can remember all the wars that have happened since and reflect that some struggles have resulted in sorts of peace and it might have all been even worse if folk hadn't remembered, a bit at least.
It is easy to feel that no-one ever learns anything. I feel like that myself, quite a lot. I sympathise with anyone's feelings of despair over it. Does every generation have to go through it all over, in order to learn?
They can remember to teach their children to be peaceful.