The people who fed these talking points to Americans were Russian bot farms. Harris is not a life long Zionist. Biden is.

Biden had single-handedly been undermining US foreign policy since he was vice president. He undercut the US position in a private call with Benjamin Netanyahu when the US was trying to leverage Israel into behaving. edit: typo

https://jewishcurrents.org/joe-bidens-alarming-record-on-israel

At this crucial juncture, Biden undercut Obama again. After Clinton’s ultimatum, the vice president—who was still traveling in the Middle East—contacted Netanyahu himself. In their book Our Separate Ways: The Struggle for the Future of the U.S.-Israel Alliance, Dana Allin and Steve Simon describe Biden’s discussion with the Israeli prime minister as “a conciliatory call” that had the effect of “undercutting Clinton and reinforcing Israel’s generally dismissive approach to the administration’s periodically tough messaging.” An administration official remembers being “astonished” upon seeing the transcript of the conversation: “Biden completely undercut the secretary of state and gave Bibi a strong indication that whatever was being planned in Washington was hotheadedness and he could defuse it when he got back.” When Clinton saw the transcript, the official recalls, she “realized she’d been thrown under the bus.”