Jews don't see WWII as "their own personal tragedy". WWII was a tragedy for the whole world.
However, the difference between the Jews and the rest of the world is that they were specifically targetted for complete extermination. Think about that for a moment - they weren't victims in a normal war, they were slaughtered with the single goal of murdering every last one of them. Not for doing anything, but simply for existing.
And not killed in a way previously seen in wars... the nazi's actually set up an industry for destruction. Factories of death, one could say. Eventually, of all Jews in Europe, 41% were killed, of the Jewish children in Europe, only 11% survived.
It was genocide in an unprecedented way and on an unprecedented scale. These weren't "losses", like you normally see in wars. These were cold-blooded murders.
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