The two-state solution is increasingly feeling like a cruel joke. American Jews’ rabbis and lay leaders counsel them to be vigilant against any other solution, such as granting Palestinians full rights in a greater Israel, because those solutions would dilute or destroy Israel’s identity as a Jewish state. Be patient, American Jews are told. Peace talks are coming. The Palestinians will have their state.

In the meantime, the movement to boycott, divest from and sanction Israel grows stronger on American campuses, and new voices are emerging in the Democratic Party, such as Representatives Ilhan Omar of Minnesota and Rashida Tlaib of Michigan, who are willing to speak openly about Palestinian rights and autonomy where other lawmakers have declined to do so.

Of course, American Jews, like Israeli Jews, are not a monolith. Within the American Jewish population, there is a significant generational split on Israel that goes beyond ideology. Older American Jews, more viscerally aware of the Holocaust and connected to the living history of the Jewish state, are generally willing to look past Israeli government actions that challenge their values. Or they embrace those actions. Younger American Jews do not typically remember Israel as the David against regional Goliaths. They see a bully, armed and indifferent, 45 years past the Yom Kippur War, the last conflict that threatened Israel’s existence.

American Jewry has been going its own way for 150 years, a drift that has created something of a new religion, or at least a new branch of one of the world’s most ancient faiths.

In a historical stroke with resonance today, American Jewish leaders gathered in Pittsburgh in 1885 to produce what is known as the Pittsburgh Platform, a new theology for an American Judaism, less focused on a Messianic return to the land of Israel and more on fixing a broken world, the concept of Tikkun Olam. Jews, the rabbi behind the platform urged, must achieve God’s purpose by “living and working in and with the world.”

For a faith that for thousands of years was insular and self-contained, its people often in mandated ghettos, praying for the Messiah to return them to the Promised Land, this was a radical notion. But for most American Jews, it is now accepted as a tenet of their religion: building a better, more equal, more tolerant world now, where they live.

Last summer, when a Conservative rabbi in Haifa was hauled in for questioning by the Israeli police after he officiated at a non-Orthodox wedding, it was too much for Rabbi Steven Wernick, chief executive of the United Synagogue of Conservative Judaism, the umbrella organization of the Conservative movement in North America.