You mean to tell me that Israel, with all those billions of dollars, couldn't see with their own eyes people flying in to their territory with guns? There is no convoluted middle east history, at least not any more than anywhere else on this planet. There is no excuse to kill anyone in violation of international law, especially when the politicians guiding that policy see the enemy as less than human and makes reference to genocidial intent in doing so. If you want to talk about history, the history that is so convoluted and confusing to you, just start in 1947-1948. That should make it a lot easier for you to understand.

Every event in 'Israeli' history can be checked. They never acted in genuine self-defense. They always had ulterior motives, to drive their force as an imperialist proxy with a massive budget, extremist ideology, and settler-colonialism. There is no blame game. Palestinians have fought against occupation. Israel is the one occupying. Now this rougue state is claiming, implicitly, that they lay claim to a Greater Israel project that threatened the entire Middle East and North Africa region. Rather than occupying territory in war, they occupy territory in aims of extermination of the native population. If they were an occupying force in war, they would be required to ensure every citizen has access to food, water, security, and other necessities of life. Instead, they occupy territories and kill or displace the population there. Either it's not a war or this rogue entity is incapable of conducting itself without constantly committing war crimes.