Seriously, what Israel is doing today is no different from what the Nazis did before and at the beginning of World War II, extreme nationalism, illegal expansion, annexation of foreign territory claiming it historically belongs to them, propaganda using the latest technology, terrorizing neighbors, military at the center of society.
Nazism is only outright banned in a few democratic countries. Even in ones where it is, like Germany, there are parties that skirt around it, like AfD. Who are getting uncomfortably popular, BTW.
It’s very hard to actually ban an ideology even in heavily authoritarian countries. Doubly so when it’s something that’s really hard to define, like Fascism. And no, the Ur-fascism paper isn’t even the final word on that subject.