Why isn't anyone stepping up to really help the Palestinians?

If tomorrow, lets say Saudi Arabi just decided to invade the US and put all american citizens into one crummy state, i dunno maybe Jersey (no offense to New Jerseyans), and just declared that they now owned the land, and if the americans tried to defend themselves..they would be called terrorists. does anyone think for one minute there wouldn't be an all out world war to defend the americans right to their land? proof of WWII? germany invaded poland, the czech and france and everyone to australia and in between was involved.....how come the palestinian people are being treated this way and no one's doing anything? its been 60 years!