The main reason for the silence of the Jews of the world is the unspeakable fear – the product of persecution through the centuries and, after the Nazi holocaust, Zionism’s manipulation of the fear – that another great turning against them is inevitable. That being so, if only in their sub-consciousness, they perceive the need for Israel as their refuge of last resort. So say nothing and do nothing that could assist Israel’s enemies and put that insurance policy at risk.
It follows that if the Jews of the world are to play their necessary part in de-Zionizing Israel/Palestine, they need to be reassured about their security and wellbeing in the lands in which they live. For most Jews these are the nations of the mainly Gentile world. (Most of the Arabs and other Muslims who also live in these lands have always known the difference between Judaism and Zionism. Most Gentiles don’t know).