That's mostly because of the illegal and immoral blockade that has turned Gaza into the largest open air prison in the world.
False.
To be fair, Gaza is (one of), the worlds largest open air islamist terrorist enclaves in the world.
The illegal and immoral blockade (the attempt at melodrama didnt work real well), was to halt weapons smuggling weapons bought and paid for with welfare money by the Pals UN funded welfare agency. Its a shame. With luxury malls, luxury cars, theme parks, etc., being built / purchased by the Poor, oppressed Palestinians, some people are still duped into believing that Arab ineptitude and incompetence is the fault of others.
After decades of UN funding for an islamist terrorist enclave, here we are, unable to pacify the inherently belligerent and bloodthirsty islamist organizations that are as much at war with each other as with Israel.
Let's not forget that with the vast sums of money heaped upon the "Palestinians", there are huge fortunes to be won and lost. Just ask Suha Arafat. They desperately need an external enemy to direct "Muslim Rage" toward. And in the Arab/Islamist mindset, Israel is always a convenient scapegoat to displace Arab incompetence.
Many approaches to peaceful co-existence have been tried. But the fact remains that since 1948, after numerous wars of aggression initiated (and lost) by Arabs, "Peace Partners", agreements, accords and resolutions, the world has apparently forgotten that as per the roadmap to nowhere, the "Palestinians" agreed to get their Islamic terrorism/jihad problem under control. That simply hasn't occurred.