I presume when you refer to young Jews in WW2, you mean those in Europe, facing death in Hitler's camps. I fail to see any genocide by Jews in Israel against the Arabs of Gaza or Samaria and Judea. Indeed the number of Arabs has increase 10 fold since they fled the Palestinian Mandate to allow their armies free access to drive Jews into the sea. Pray explain your remarks.
Police neutralize stun grenade left on Or Akiva mayor's doorstep (Haaretz)
from the article: Thousands of Palestinians faking illness to flee Gaza siege