Ah, the tenets of Libthink, one of which is that anyone opposed to the policies of one President Obama is, by definition, a racist.

A second is that only whites can be racist. Another is that no black person, anywhere, at any time and under any circumstances, can be a racist.

And now, courtesy of none other than Oprah Winfrey, those white racists need to die for America to enter racial Shangri La.

Oprah’s on a tour. She was recently in Great Britain to promote her movie “Lee Daniels' The Butler.”

A correspondent for the BBC asked her if she felt that racism was the reason some Americans opposed Obama and his policies. Oprah, the one person responsible, more than any other, for Obama being president, of course said yes.

But she said much more than that. Specifically, she said this when asked if the problem of racism in America had been solved:

“Of course the problem [of racism] is not solved. ... As long as there are people who still— there’s a whole generation — I say this, you know, I said this, you know, for apartheid, South Africa, I said this for my own, you know, for my own community in the South — there are still generations of people, older people, who were born and bred and marinated in it, in that prejudice and racism, and they just have to die.”

In one quick, thoughtless breath, Oprah added another tenet to Libthink: Not only are all racists white, but they also need to “just die,” every last one of them.

Once all those old, white racists “who were born and bred and marinated in it” have died, then America will be forever purged of racism.

Make that “white racism,” and remember, according to Libthink doctrine, that’s the only racism worth mentioning.

The racism that blacks might hold for non-blacks, that Latinos might hold for non-Latinos and that Asians might hold for non-Asians won’t go away of course, no matter how much adherents of Libthink doctrine might wish it were so.

There will continue to be the attacks that black thugs make against white victims, some of which (if not all) have to be at least partially motivated by race.

That black vs. Latino racist conflict won’t end after all those old white folks “bred and marinated in racism” die.

Said conflict has been going on for years. You might have seen an episode about it on Oprah’s show when it was on the air.

What’s that? You never heard about what happened to Cheryl Green on Oprah’s show? Well, there might be a reason for that.

Oprah, her brain steeped in Libthink as it is, probably didn’t figure this tale of Latino-on-black violence was worth doing a show about.

Green was only 14 years old when a Latino gang member fatally shot her in the Harbor Gateway area of Los Angeles on Dec. 15, 2006.

Four years later, Jonathan Fajardo was found guilty of Green’s murder. He was also found guilty of a hate crime, which means Green’s murder was racially motivated.

This wasn’t a murder carried out by some old, “bred and marinated”-in-racism white person Oprah holds in such disdain. At the time of Green’s murder, Fajardo, a Latino man, was only 18 years old.

So Oprah’s notion that racism is the exclusive worldview of the old and the white appears to be utter nonsense.

In the early 1990s, a Korean-American named Joel Lee was fatally shot on the streets of Baltimore.

Witnesses identified a distinctly not old and distinctly not white African American male as the shooter. At his trial, witnesses also told of the utter hatred he had for Asians.

A predominantly black jury acquitted him. In spite of Oprah’s delusions, racism won’t end once all those old, “bred and marinated in racism” whites die.

Gregory Kane, a Washington Examiner columnist, is a Pulitzer Prize-nominated news and opinion journalist who has covered people and politics from Baltimore to the Sudan.