It's a little hard to parse. Since Hamas was an outgrowth of the Muslim Brotherhood it would seem that Egypt would be sympatico. So why aren't they giving aid to their brother Sunni terrorists?
I have no idea. Maybe they've evolved beyond the idea of a permanent war footing as a way to a better economy and lifestyle? There's clearly no money in that.. Egypt and some other countries in the Middle East, like just about all of them, apparently value a working relationship with Israel over one with Iran, which has zero to offer except the exporting of terrorism.
Egypt and Israel have been at peace with each other for decades and maybe Egypt doesn't want to rock to the boat to come to the aid of unrepentant terrorists? Similarly, Jordan has shown no inclination to aid Hamas and they also have been working it out with Israel. As I noted once before, mining operations in the Dead Sea have roads running between Jordan and Israel which have no checkpoints (been there seen that).
Hamas instigated this war on the eve of the beginning of a possibly somewhat normalized relationship between Saudi Arabia and Israel. Say what you will about Netanyahu planning this to avoid jail, Iran's stakes are so much higher.
Hamas has used the hundreds of millions of dollars, billions, that it has received in aid for Gaza to, instead, build the infrastructure for permanent war. Who wants to partner with that?
One thing to keep in mind in any discussion of the Middle East is that Israel is a net exporter of desalinized (fresh) water which will be of increasing importance as climate change continues along its merry way.
