Hmmm. 1.4 million in Gaza, how many on West Bank? I guess they all get Israeli citizenship, right? They don't live in any other country. As for "useful employment," a large open air prison like Gaza with strangled imports and exports doesn't offer too many opportunities other than smuggling or working for UNRWA. The fact that so many Palestinians are willing to risk their lives by working in tunnels or trying to cross into Israel shows how eager they are to find employment.
First refugees travelling on Hungarian bus arrive at Austrian border (Reuters)
from the article: As UNRWA turns 60, it asks for more funding for Palestinian refugees