The new European group JCall raises a disturbing question: how could pro-Israel intellectuals like Alain Finkielkraut and Bernard-Henri Levy support a venture that is simultaneously anti-Israel and intellectually incoherent? JCall presented a petition to the European Parliament this week that asserted that Israel’s future “depends upon” peace with the Palestinians, so the European Union must “put pressure on both parties.” Then, abandoning the pretense of even-handedness, it added: “Systematic support of Israeli government policy is dangerous and does not serve the true interests of the state of Israel.” There was no comparable warning against supporting Palestinian Authority policies, some of...