Donald Trump is waging war on California the way Rome did on Carthage.

He ordered the National Guard and the Marines to occupy parts of Los Angeles, over the objections of Gov. Gavin “Newscum” and Mayor Karen Bass. He’s demanding that my alma mater, UCLA, pay a $1-billion fine over allegations of antisemitism. His Justice Department has sued the state on issues including transgender athletes, big-rig emission standards and cage-free eggs.

Now, Trump is going after our history.

Last month, the White House issued a news release titled “President Trump Is Right About the Smithsonian,” flagging a grab bag of museum exhibits as offensive — basically anything that highlights racism or is sympathetic toward LGBTQ+ people and undocumented immigrants.

Buried in this trash heap of whines is a complaint that reflects how hell-bent Trump is on bending California to his will.

Describing a “Californio” family as losing their land to Anglo “squatters,” which the yet-to-be-built National Museum of the American Latino does on its website, is apparently a DEI thought crime, according to the news release.

My query to the White House, asking what exactly is so offensive about this characterization of the Mexicans who stayed in California after it became part of the U.S., was acknowledged yet not answered.

But the focus on “Californio” and “squatter” — and putting those words in quotes, as the news release did — suggests the underlying issue, said UC Santa Barbara history professor Miroslava Chavez-Garcia, who specializes in 19th century California.

“They’re trying to question the legitimacy” of the Californios, she said. “Who matters as an American? [To Trump], it’s not people who come from Mexico. It’s people who came from the East.”

“The level of minutiae on this — it’s not him,” she added of Trump. “He’s not a reader. It must be a vast team doing this.”

Worrying about scare quotes around two words in a White House news release might seem like distracting piffle compared with Trump’s other anti-California volleys.

But how the U.S. government frames our yesteryear is one of this administration’s main battlefronts and something I’ve repeatedly warned about in my columna. History is written by the victors, goes the cliche, allowing them to shape a people’s sense of self and decide who’s important and who isn’t.

That’s why Trump and his goons have tried to remake our nation’s past as a triumphalist, so-called Heritage American story, in which people of Western European heritage are always the main actors and the heroes. They’ve done it with the obsession of a pharaoh chipping away all mentions of his predecessors from obelisks.

Trump’s campaign started on Inauguration Day, when he signed an executive order renaming the Gulf of Mexico the Gulf of America. Secretary of Defense Pete Hegseth has removed the name of LGBTQ+ hero Harvey Milk from a Navy ship and restored the names of Army bases that had honored Confederate officers. The Department of Homeland Security keeps posting images and artwork that celebrate Manifest Destiny — the idea that white people, and white people alone, saved this savage continent.

Next up: a review of exhibits at national memorials and monuments to ensure they don’t “inappropriately disparage Americans past or living,” an “extraordinary celebration” for this country’s 250th birthday and a National Garden of American Heroes to “reflect the awesome splendor of our country’s timeless exceptionalism.”

In Trump’s mind, the United States has never done any wrong, and anyone who thinks so hates this country. It’s not surprising that casting Californios as victims of rapacious gringos might offend him or his lackeys. But this isn’t wokoso propaganda — it’s well-documented history.

Pio Pico State Historic Park in Whittier was home to its namesake, the last governor of California when it was part of Mexico.

(Ringo Chiu / For The Times)

In 1850, Sacramento’s sheriff and mayor died while attempting to remove white squatters, in what was quickly deemed the Squatter Riot. The following year, the U.S. government forced Californios to prove they owned the land they lived on, even though the Treaty of Guadalupe Hidalgo, which ended the Mexican-American War, had ensured their property rights. In the meantime, white settlers could largely claim rancho land as they pleased.

California’s most famous historians — Hubert Howe Bancroft, Kevin Starr and Robert Glass Cleland, to name a few — wrote extensively about so-called squatterism, with Bancroft describing what happened to the Californios as “oppressive and ruinous.”

A new generation of scholars has focused on the writings of Californios, including “The Squatter and the Don,” an 1885 novel by María Ruiz de Burton based on her family’s fight to keep their rancho in what’s now San Diego County.

This was the book described on the National Museum of the American Latino website, prompting the ignominious “Californio” mention in the White House news release.

Until now, “there’s never been much opposition, really” to the narrative of the Californios’ decline, Chavez-Garcia said, calling it “foundational” to the state’s mythology. She cited festivals in mission towns, such as Santa Barbara’s Old Spanish Days Fiesta, where people dress up like the Californios of yore to remember a romanticized era that was destined to end badly.

“The thinking was that the state’s prosperity was never meant to happen” to Californios, she said. “They were meant to die off.”

As a high school student in San José, Chavez-Garcia knew none of this history — “we learned more about the Homestead Act in the Midwest,” she joked. At UCLA, when she finally learned about the Californios, she was “outraged” and questioned why her beloved high school history teacher “didn’t teach us this basic thing.”

“Many people … don’t know our history, so whatever the government tells them to read, they’re going to accept,” she said. “You can’t just let someone take an eraser and erase these histories willy-nilly lo que no le gusta [what someone doesn’t like] and then put in whatever the hell you want because it makes you feel good.”

It can’t fall only on scholars such as Chavez-Garcia and nerds such as me to push back against Trump’s ahistorical assault. All Californians need to stand up to people who not only want to remain willfully ignorant about the bad parts of our history but also want to stop others from learning about them. Speaking only about the good prevents us from doing better and leads to a juvenile worldview that’s sadly taken hold in the White House and beyond.

We must take the stance expressed by Doña Josefa Alamar, a protagonist of “The Squatter and the Don.”

At the end of the novel, she is living in exile in San Francisco. Her husband has died from the stress of trying to keep their rancho, her sons live in hardship and her daughter is married to a white man. A friend urges her to stay silent and not malign the “rich people” who caused her so much grief. But Doña Josefa refuses.

“Let the guilty rejoice and go unpunished, and the innocent suffer ruin and desolation,” she replies. “I slander no one, but shall speak the truth.”