Listening to the descriptions of some of the videos (which I really have zero interest in seeing) that Hamas is PROUDLY sharing.... driving around civilian areas, randomly shooting civilians, kidnapping civilians, including woman (I will just let you image what is happening to them) and children (one video of Palestinian children hitting / taunting a Jewish child to say "mama" in Yiddish, who's mom was almost certainly murdered in front of him).....
The Israelis are not going to go easy with this one and I cannot image there are many semi-rational people / countries will have any support for Hamas after this. But there is certainly cheering going on.
The Israelis have already started aerial bombardment of Gaza. By some of the explosions, you can tell (very narrow spouts of dirt, almost straight up) they are using deep penetrating bombs that are taking out tunnels. In other case, they are taking out entire buildings with one shot (!), I am guessing by having them explode on the ground floor.
Common practice BTW is for Israel to drop low yield "door knock" bombs first, to warn occupants to flee or by sending text messaging (? not sure how that works). Apparently Hamas is telling residents to ignore these messages. They want them in these buildings when they are hit.
Why would Hamas do this you ask? Well, their existence is essentially based on being victims of Israeli aggression, be that real, perceived, or prompted by them. It is common practice to launch rockets from next to schools, hospitals, Mosques etc, so any reprisals have the highest chance of "notable" civilian deaths.
I don't know what the Israelis will do, but I suspect it will involved sweeping the entire Gaza area, clearing every house, and eliminating any weapons / factories they find. This will certainly result in civilian casualties, if for nothing else, the only difference between a Hamas fighter, and a civilian, can be a headband, they can easily take off, or not wear one at all. Israeli military will certainly die also, but they are VERY motivated now.
As for the future of Gaza (this is a strip in southern Israel, next to Egypt, so not to be confused with the West Bank, which boarders Jordan), I have no idea. But it is worth noting, the Egyptians want nothing to do with the Palestinians (boarder crossing are normally closed). It should also be noted that Israel does not occupy Gaza (as some will say), it is walled off, but is self-governed.
As noted, I suspect Hamas was made to think this is a good idea by Iran (basically certain they helped set this up and fund it), who will only gain by almost any outcome. The Palestinians can only loose. There is NO way this would end up with any sort of good thing for them. It certainly will not be the first, or last time, a group portends to be a protector or savior of a group, when in reality, they are they only increase their misery.
To be clear, I want to make sure we do not place blame on Palestinians in general. I am sure a large percentage of them want nothing to do with this BS. Hamas was elected into power there, but have refused to allow any elections since, and as can be seen in Russia, free elections... sometimes, not so much.
It also should be noted, that this situation has been brewing for a LONG time, so people born into it, with few options but becoming a "holy freedom fighter"... there is just no simple answer, if there is even an answer at all.