The winds of isolation and narrowness are blowing through Israel. Rude and arrogant power brokers, some of whom hold senior positions in government, exclude non-Jews from Israeli public spaces. Graffiti in the streets demonstrates their hidden dreams: a pure Israel with “no Arabs” and “no gentiles.” They do not notice what their exclusionary ideas are doing to Israel, to Judaism and to Jews in the diaspora. In the absence of a binding constitution, Israel has no real protection for its minorities or for their freedom of worship and expression.

If this trend continues, all vestiges of democracy will one day disappear, and Israel will become just another Middle Eastern theocracy. It will not be possible to define Israel as a democracy when a Jewish minority rules over a Palestinian majority between the Jordan River and the Mediterranean Sea — controlling millions of people without political rights or basic legal standing.

This Israel would be much more Jewish in the narrowest sense of the word, but such a nondemocratic Israel, hostile to its neighbors and isolated from the free world, wouldn’t be able to survive for long.

But there is another option: an iconic conflict could also present an iconic solution. As in Northern Ireland or South Africa, where citizens no longer spill one another’s blood, it will eventually become clear that many Israelis are not willing to live in an ethnic democracy, not willing to give up on the chance to live in peace, not willing to be passive patriots of a country that expels or purifies itself of its minorities, who are the original inhabitants of the land.

Only on that day, after much anguish, boycotts and perhaps even bloodshed, will we understand that the only way for us to agree when we disagree is a true, vigorous democracy. A democracy based on a progressive, civil constitution; a democracy that enforces the distinction between ethnicity and citizenship, between synagogue and state; a democracy that upholds the values of freedom and equality, on the basis of which every single person living under Israel’s legitimate and internationally recognized sovereignty will receive the same rights and protections.

A long-overdue constitution could create a state that belongs to all her citizens and in which the government behaves with fairness and equality toward all persons without prejudice based on religion, race or gender. Those are the principles on which Israel was founded and the values that bound Israel and America together in the past. I believe that creating two neighboring states for two peoples that respect one another would be the best solution. However, if our shortsighted leaders miss this opportunity, the same fair and equal principles should be applied to one state for both peoples.