In March 2018, New York City Mayor Bill de Blasio appointed ­Richard Carranza, former ­superintendent of schools in Houston and San Francisco, to serve as his Department of Education chancellor.

Fifteen months later, Carranza has distinguished himself not through his educational leadership, but with his divisive rhetoric and agenda, whose hallmark is a combative, race-baiting style.

I speak for most of New York’s Chinese American community, but not for that community alone, when I say that it’s time for Hizzoner to remove Carranza from office and appoint a new schools chancellor who can repair the ­institutional and racial wreckage left behind by Carranza.

The most recent Carranza scandal involves several controversial hires that saw him ­offer high-paying DOE jobs to former subordinates, all of them from out of state.

Carranza allegedly waived the usual competitive-hiring protocols and demoted well-qualified white employees in the process. In response, three high-level DOE employees, all women, filed a $90 million discrimination lawsuit against Carranza.

But it’s Carranza’s response to questions about this scandal that is most telling — and as ­offensive as the allegations themselves. Rather than ­address the allegations of racism and cronyism forthrightly and ­defend his hiring decisions on the merits, the chancellor ­instantly declared that he was being criticized for being “a man of color.”

Let me, as a person of color, ­offer a list of names that should ring familiar to Carranza: Carmen Fariña, Dennis Walcott, Rudy Crew, Ramon Cortines, Joseph Fernandez, Richard Green, Nathan Quiñones, Anthony Alvarado.

Those are all previous New York City schools chancellors, all men and women of color — none of whom was ever denounced with such vehemence by parents from all racial backgrounds across New York City.

Carranza’s problems don’t stem from his skin color — they stem from his toxic racial animus and agenda.

After all, we are talking about a chancellor who claimed that Asian Americans benefit from “white privilege,” just because these poor immigrants study hard and do well on race-blind standardized tests.

When parents objected to his attempt to change admissions criteria at our city’s highly competitive specialized high schools, he dismissed their concerns by smearing Asian Americans and suggesting that we Asians believe we “own” admissions to the specialized schools.

We are talking about a chancellor who explicitly excluded whites and Asians in teacher hiring postings.

We are talking about a chancellor who contracted expensive consultants to run Maoist-struggle sessions against white employees in required “implicit-bias training.”

We are talking about a chancellor who has sought to undo the admissions process at specialized high schools, expressly aiming to decimate enrollment rates of “overrepresented” Asian American students. This ­resulted in him and the mayor facing a federal lawsuit for racial discrimination.

These are signs of a school system in crisis, and they all stem from Carranza’s ugly, toxic and race-obsessed agenda.

The chancellor has rapidly lost the confidence of parents and city leaders. In recent weeks, Justin Yu, chairman of the Chinese Chamber of Commerce of New York and the Asian Pacific Islander American Public ­Affairs Association, ­issued two open letters urging the mayor to remove Carranza from office.

Last week, Councilman Robert Holden issued a similar bipartisan letter, co-signed by eight other legislators. And on Sunday, CEC 20 member Irene Chu called out Carranza for disrespect against the Asian community.

At public forums held by state Sen. John Liu to solicit community input on changes to specialized high school admission policies, parents were ­increasingly vocal in calling for Carranza’s firing.

The educational challenges facing New York are many, and they are urgent. Black and Hispanic children, ­especially, are victimized by dysfunctional schools and are performing dismally on state tests. We need an educator, not a ­divider.

In 2018, Richard Carranza might have looked like the right man for the job, but a year later, it is clear he is unfit to lead the nation’s largest school system. There is no shame in the mayor admitting he made a hiring mistake in appointing Carranza — San Francisco and Houston made the same mistake. But he shouldn’t make New York children and families pay the price for that mistake.

It’s time for Carranza to go.

Wai Wah Chin is president of the Chinese American Citizens Council of Greater New York.