"I'd rather be a Russian than a Democrat," reads the t-shirt of a Republican Party supporter in the U.S.

"We need to bring the French economy to its knees," announces the leader of the French union Confédération Générale du Travail.

"Let's end the power of the Supreme Court filled with leftist and pro-Palestinian Ashkenazis," say Israeli government cabinet ministers pushing extreme judicial reforms

The United States, France, Israel: three countries, three continents, three situations that have nothing to do with each other. But each country appears to be on the edge of a nervous breakdown of what seemed like solid democracies.

How can we explain these political excesses, irrational proclamations, even suicidal tendencies?

The answer seems simple: in the United States, in France, in Israel — far from an exhaustive list — democracy is facing the challenge of society's ever-greater polarization. We can manage the competition of ideas and opposing interests. But how to respond to rage, even hatred, borne of a sense of injustice and humiliation?