As a sort of outsider afaik: many ( Germans) probably still feel the cultural guilt. Also, technically and morally the Germans have made reparations and ammendments ; still many have therefore a soft and blind spot for the Jewish cause. And for sure the Holocaust should never been forgotten.
But the diaspora started many centuries ago. Zionisim started as a (revolutionary) reaction to this dispersal, and as a wakeupcall for the ppl to unite at the end of 19th century iirc.
These (displacement & refuge) problems and in this case ages of racism (antisemitism) are ancient.
And just to be clear, they're not the only (lost/disturbed) tribe worldwide.
Imo, many palestines must specially now be experiencing somewhat similar or parallel to what happened to many Jews during WW II, which makes it even crazier.
It's just ancient history repeating itself, only the name, the places and the dates have been changed..
I imagine, and this is a recent discussion, that the UN charter and all humanitarian organisations must change and modernize our legal framework and organisation. There are and are going to be way more refuges and horrors in the years to come.