>>2829993that's a complex question and complex questions don't have simple answers. i suppose you could start with the mathematics of it, the total population of gaza and the west bank is about 5.5 million people and israel has a population of about 10 million people. nazi germany managed to exterminate at least tens of millions of civilians over the course of world war 2 but germany was a huge industrial superpower with a population of about 80 million at the beginning of the third reich and was formerly a vast and long-enduring global empire that ruled much of europe and had colonies all over the world, before the first world war germany was essentially the america of its time, the leading economic and industrial superpower of the world.
in comparison, modern-day israel is a comparitively much smaller and younger nation than nazi germany was, having only been recognized as an independent sovereignity in 1948 and before that it was a territory of the british empire and before that it was part of the ottoman empire. with the aid of much outside support from britain and then later the us they have developed into a more robust nation over the past decades with a sizeable military and high tech industrial economy, but they are still vastly overpowered and outnumbered by their neighboring territories and still heavily dependent on outside support, so they can't just do whatever they want without expecting any serious and immediate consequences, at least not at this time.
the mentality behind western support for israel and its wars is basically like an engineer's mentality toward an internal combustion engine - as long as we carefully funnel in the correct amount of fuel and air and keep everything nice and lubricated we can maintain a steady controlled explosion that drives the pistons and performs useful work for us and the engine will keep running indefinitely. in other words, as long as the west provides the right amount of financial and military support to israel, their wars will remain small-scale conflicts that we can financially benefit from and not escalate into a full-scale regional conflict that causes skyrocketing oil prices and economic chaos and potentially even nuclear war and basically be a huge catastrophe that benefits absolutely no one, i.e. blowing the engine.
of course the obvious problem with this line of simplistic mechanical non-systems thinking is, a country is not a mindless machine incapable of thought or agency and it's not going to simply take all of the wealth and resources you provide and burn it all up as fuel; its going to use some of it for developing its own industrial and technological infrastructure to gain some leverage of its own. this is exactly what has happened with israel, especially after their development of nuclear weapons capability, and now the west has been put in a very difficult position - they can't provide too much support or else israel will escalate the conflict into a regional war and blow the engine, and they also can't just totally withdraw their support or else israel might independently choose to go all-in and escalate the conflict into a regional war and blow the engine.