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.
Capitalist countries rarely enforce their policies on right wing extremism. Fascism is a guard dog of capital they think they can keep leashed. In the 20th century that guard dog was pointed east so that it could harm the communists which threatened capital then. Today that guard dog is used to control resources in west asia and hide the dirtier work of imperialism that the west doesn’t want as seen on their hands. They can’t ban zionism because they need Israel and zionism is foundational to Israel.