The people you are calling Palestinian have reproduced in record numbers with the help of Israeli medicine. Some genocide. They are penned up as you call it due to their leadership being unable to arrive at a peaceful solution and having tried most every other solution including the election of a government with war as its only national solution. When not 'penned up' they have made very useful citizens in surrounding Arab countries and the West, except for instances of being killed in large numbers in Lebanon and Jordan by their fellow Arabs.