But even if you completely dismiss the Palestinian right of return — which I find harder to do now that Israel’s leadership has all but abandoned the possibility of a Palestinian state — it hardly excuses the Israeli military’s disproportionate violence. “What we’re seeing is that Israel has used, yet again, excessive and lethal force against protesters who do not pose an imminent threat,” Magdalena Mughrabi, Amnesty International’s deputy director for the Middle East and North Africa, told me by phone from Jerusalem.

Much of the world condemned the killings in Gaza. Yet the United States, Israel’s most important patron, has given it a free hand to do with the Palestinians what it will. Indeed, by moving the embassy to Jerusalem in the first place, Trump sent the implicit message that the American government has given up any pretense of neutrality.

Reports of Israel’s gratitude to Trump abound. A square near the embassy is being renamed in his honor. Beitar Jerusalem, a soccer team whose fans are notorious for their racism, is now calling itself Beitar “Trump” Jerusalem. But if Israelis love Trump, many Americans — and certainly most American Jews — do not. The more Trumpism and Israel are intertwined, the more left-leaning Americans will grow alienated from Zionism.

Even before Trump, Prime Minister Benjamin Netanyahu helped open a partisan divide on Israel in American politics, where previously there had been stultifying unanimity. “Until these past few years, you’d never heard the word ‘occupation’ or ‘settlements’ or talk about Gaza,” Jeremy Ben-Ami, president of the liberal pro-Israel group J Street, said of American politicians. But Ben-Ami told me that since 2015, when Netanyahu tried to undercut President Barack Obama with a controversial address to Congress opposing the Iran deal, Democrats have felt more emboldened. “That changed the calculus forever,” he told me.

The events of Monday may have changed it further, and things could get worse still. Tuesday is Nakba Day, when Palestinians commemorate their dispossession, and the protests at the fence are expected to be even larger. “People don’t feel like they can stay at home after loved ones and neighbors have been killed for peacefully protesting for their rights,” Abdulrahman Abunahel, a Gaza-based activist with the boycott, divestment and sanctions movement, told me via email.

Trump has empowered what’s worst in Israel, and as long as he is president, it may be that Israel can kill Palestinians, demolish their homes and appropriate their land with impunity. But some day, Trump will be gone. With hope for a two-state solution nearly dead, current trends suggest that a Jewish minority will come to rule over a largely disenfranchised Muslim majority in all the land under Israel’s control. A rising generation of Americans may see an apartheid state with a Trump Square in its capital and wonder why it’s supposed to be our friend.