Occupied Palestinian territory is part of Easter Mediterranean Region while Israel is part European region.
So all the original rant of the poster was meaningless and just another fine case of people not using 5 mins on google to verify anything.
Israel stands at the crossroads of Europe, Asia and Africa. Geographically, it belongs to the Asian continent and is part of the Middle East region. In the west, Israel is bound by the Mediterranean Sea.
The linked map was WHO Eastern Mediterranean Region that includes Palestine but not Israel.
Israel is included in WHO European region.
If you disagree with WHO filing system that is fine but presenting the case like U.N. has totally wiped Israel off the map is just stupid because it was the wrong map in the first place.
This is like saying Kentucky hates Israel because Kentucky map is not showing Jerusalem.
Just for kicks here is the link for map of WHO regions and tldr to go with it
WHO regions: WHO Member States are grouped into 6 WHO regions: African Region, Region of the Americas, South-East Asia Region, European Region, Eastern Mediterranean Region, and Western Pacific Region. See map and the Notes sheet in each spreadsheet for more information.