Not starving enough apparently. If they get hungry enough, they can strip down to their skivvies and walk out with their hands up.
My guess is that there’s 50,000 Hamas fighters hiding underneath the tunnels. They were able to stockpile supplies when they launched the 10/7 attacks. My guess is that they had enough to ride out the war for six months. But if they are capturing aid supplies, then they can continue the war indefinitely.