There is no such thing as a "Jew memory" shared by all Jews.

The individuals doing this shit certainly heard the stories as that stuff is constantly repeated and part of the national identity in Israel, but they didn't feel the suffering and in fact most of them don't even come from families which suffered in the Holocaust as most Israelis are not from families that came from Western Europe.

Even when people felt the horror by being on the other side, they need to actually be able to empathise with their victims to not want to inflict that same horror on them: in other words they need to not be sociopaths or psychopaths and to see those victims as fellow human beings. Notice how in Israel, just like in Nazi Germany, the targetted ethnicity are constantly dehumanized with extreme racist statements about them, to the point that Palestinians in Israel are called "human animals" similarly to how Jews in Nazi Germany were "untermenschen" (sub-humans).

With a population of people were 99.999% did not in fact suffer anything in the Holocaust (there is literally only a handful of people in Israel who were alive back then, living in Western Europe and who were caught by it), with an actual constitution stating the superiority of their race (literally "the chosen people") and enshrining discriminatory treatment on race (the Israeli constitution says that only Jews can be Israeli Nationals), under constant extreme racist propaganda in most of the Press and in statements from politicians very literally dehumanizing the ethnicity they're targetting ("human animals") and with sociopaths and psychopaths not just part of the highest levels of government and the military but in general being given free reign to execute their most violent fantasies with no pushback as long as it's against the "lesser" races, this kind of shit is not just unsurprising, it's innevitable.