What are they supposed to do? Gaza is only allowed to buy things Israel allows them to buy, only allowed to sell things Israel allows them to sell (or does it just not allow them to export their products? I’m not sure). No government can function under these conditions. Hence the international aid, that surprise surprise Israel also limits. We can blame Hamas’s domestic policy all we want, but under these conditions they never had a chance. Gaza just doesn’t have the resources to survive without contact with the outside world.