That also assumes every bill you use will be immediately returned to a bank. You’d have no way of knowing where money comes from and belongs to after one hop. Just make a purchase at the supermarket to exchange a 50 for 45 and you’ve got anonymous cash.
While this meme/picture is definitely exaggerated, the expansion of Israel far beyond its current borders is a political position held by members of the current government. It originates from early Zionist militias that aspired to capture these widespread borders.
It even caused an international incident some time ago. https://www.timesofisrael.com/israel-seeks-to-calm-waters-with-jordan-after-racist-extremist-speech-by-smotrich/