The ancient division of Jewish homeland into Israel and Judea was not incidental, but a built-in feature of the Jewish way of life. For Jews to maintain the principles different from the rest of the world, we must remain separate, “the people that dwell alone.” Our principles do not run contrary to pagan ethics, but rather extend it a lot. Our principles, moreover, are not idealistic but perfectly suited for the life in the real world. Jews, therefore, do not need isolating ourselves in monastery-like communities, but may interact with other peoples to a considerable degree. Still, too much interaction leads to cultural assimilation.

In any economy, the biggest profits are generally made from dealing with faraway partners because economic differences increase with distance, and informational efficiency (knowledge of the local market) decreases. Successful economies are open to foreign trade. With foreign trade, however, comes foreign influence: Persian and Hellenic then, American now. Economically-minded strata of Jews are always open to foreign influence. Such Jews prosper and become attractive targets: for invaders then, for economic and therefore cultural colonization now. Affluent, content people are unwarlike, not zealous for their values, and quickly succumb to invasion or assimilation.

There is no rational sense for educated, productive Jews to stay in Israel while they can earn several times more in Gentile countries. A first generation or two of Israeli-born Jews would stay here out of habit, but habits erode quickly. American Jews similarly retained their Jewish identity for two generation after they lost Judaism, but universally assimilated in the third and fourth generations. Working for foreign markets, then working abroad, then emigrating permanently is the next two decades’ trend.
Underproductive Jews will remain in Israel: ultra-Orthodox Jews sponsored from abroad, Black and many Sephardi Jews, some others. Their state will be similar to Judea, a zealous poor state in the barren hills, lingering in existence for some time after Israel had gone. Like ancient Judea, the modern state will eventually become a protectorate or administrative autonomy under foreign rule.

Unless, of course, Jews heed the commandments and annex the Promised Land now.