Historically the UK is responsible for many artificial national borders in the area of Ethniclashistan. An impossible task.
The US set up puppet leaders that created more angst.
Many Arab leaders were aligned with Nazi Germany and shared attitudes about Jews. Throw in radically ancient religion and oil and we have a problem beyond any simple solution. Carving out a Jewish homeland in Western Germany in 1945 would have been just as problematic.

You can never go home again.
an olde saying