Fundamentalism is a psychosis.
"There is no evidence that the Jewish kingdoms arose from genocides. Most likely they arose from local Canaanite communities adopting early forms of Judaism. Jewish fundamentalists adhere to a 6th century BCE text that is most likely a mythical reconstruction of purported events several centuries earlier, and a form of political bravado that was common in ancient Near Eastern politics."
https://www.commondreams.org/opinion/israel-s-policy-of-genocide