from britexpat's link:
http://www.guardian.co.uk/commentisfree/2010/jun/24/middleeast-palestini...

"Historically, Lebanese citizens have declared that naturalising Palestinians will act as a disincentive to their eventual repatriation and the exercise of their inviolable right of return.

While Israel absorbs its Jewish refugees, the Arab nations do not absorb Palestinian ones. The above statement is the answer to why the Palestinians plight is so poor.

Every other country around the world since WWII has had to do something with the displaced and refugees that arrive. "