I don't understand where you're coming from with this, along with the "Death to Israel" comment someone made earlier.
How do they not have ground to stand on if they're being attacked by individuals in Gaza? You're saying that Palestine (whatever collective entitity that happens to be...) is defending it's life and property - is that not what Israel is doing when Israelies are being killed by rockets from Gaza?
I'd love to know the real strategy behind Israel kicking out jews from Gaza a while back - did anyone really think it would be any different than this?
This area has been in a war for thousands of years, why expect anything to change? Every group and sub-group believe they have the right to lay claim to this land, and have been disputing over it. Every hundred years this tug-of-war game would shift, and some other group would gain control over the "holy land."
With the aid of outside forces (UN, US and Britain) Israel became a recognized country and land was taken from Palestine to give to Israel. Israeli leaders have been bombarding Palestine since 1948, pushing them further and further out, and openly calling them a lesser form of human being.
Palestine, and no doubt the entire Arab world, is pissed off that international and (mostly) western influences feel they have the right to control the world and decide who gets what.
Palestine is merely trying to get back what they once had. They have seen their homes bulldozed as the Israeli boundaries grow and Palestine shrinks. Gaza is one of the most populated places on earth. They've been pushed into a corner, surrounded by enemies, disallowed to have basic medicines, food and water and seen their families murdered by Israel for the actions of a few people with nothing more than bottle rockets and machine guns.
Some people, on both sides, have done terrible wrongs. But a large majority have done nothing wrong but are still killed anyway. There is a double-standard that is being pushed by Israeli and American media that Israel has done nothing wrong and is only defending itself, and that Gazans are "terrorists."
Look at history and the numbers, facts, and decide.