Its becasue the Arab states are anti semitic haters who refuse to accept Israel. The arabs control the UN and its hack agencies and this just goes to prove that they cannot be trusted to do anything except vote to try to hurt Israel. Muslims steal holy sites all the time and appropriate both jewish and christian religous figures as their own. Its disgusting and this vote is further evidence. However, pretty soon all of this will mean nothing anyway, There is a big shoot out coming and Iran is leading the charge to ge it going. When the blowout comes and goes, we will see what the pieces look like to be picked up. Hopefully, Israel will wipe out the haters and leave the middle east with those palestinians who want peace and the other nations that also want peace .. namely Egypt and Jordan. Hopefully, Lebanon, syria and Gaza will be purged of the terrorists and those lands cna be handed to those who will make peace.
Firebomb thrown during demonstration in northern Israeli town of Umm al Fahm (Haaretz)
from the article: Israel slams 'absurd' UNESCO decision on Jerusalem, West Bank holy sites