In accepting a lifetime achievement honor at Sunday night’s Golden Globe awards, Oprah — is there really any need for a last name? — set Hollywood hearts aflutter and political commentators’ minds whirring with her impassioned speech promising “a new day on the horizon.”

As we have heard ad nauseam in the days since she bashed sexual harassers and racists while pouring praise on the media, Oprah is suddenly presidential timber. In the wake of her woke moment, some apparently cannot wait for 2020.

NBC, not demonstrating any bias whatsoever, immediately tweeted “Nothing but respect for OUR (emphasis original) future president.” (The tweet was retracted and deleted, and NBC blamed the comment on its contractor’s interpretation of a joke.) The Washington Post columnist Eugene Robinson dashed off a piece noting that he, despite being “pretty hard-bitten and jaded,” found her speech “inspirational — even thrilling.” “When she ramped the energy and emotion even higher with her ‘new day is on the horizon’ proclamation, I no longer had any doubt that I was hearing political oratory of a very high order. And I confess that I had a lump in my throat,” Robinson added. Bill Kristol, editor of the conservative Weekly Standard magazine and arguably head of the #NeverTrump contingent among Republicans, simply tweeted: “Oprah.#ImWithHer.” He has subsequently issued more tweets explaining his admiration for the media mogul.

The reaction to Oprah puzzles us.

Undoubtedly, Oprah’s business savvy — she’s reportedly worth $3 billion — and cross-cultural appeal on the entertainment landscape could make her a formidable presence if she swallows the hype and makes a bid for the White House. (The consensus is that Oprah would be a Democrat.)

Suffice to say, like any other American, Oprah has the right to seek the highest job in the land. Unlike almost every other American, she possesses the means — in funding, name recognition, status and so on — to get there.

We have no comment on whether she would make a good president or a bad one — other than to say on policy we would be wary, based on who's swooning at the idea of her candidacy, of expectations that she would reverse President Donald Trump’s policies, perhaps in order to revive the meddlesome, big government inclinations of her pal and fellow Chicagoan, Barack Obama.

Rather, our initial reaction to the possibility of Oprah 2020 is to note the hypocrisy of those who clamor for her.

Since Trump became a candidate in June 2015, Democrats and GOP anti-Trumpers have dismissed him as unfit for the job. Not least among their reasons was the notion that Trump was an wealthy, empty-suited windbag celebrity with no political experience.

For example, the Huffington Post, the liberal news website, announced a month after Trump entered the GOP primary: “(W)e will cover his campaign as part of our Entertainment section. Our reason is simple: Trump’s campaign is a sideshow. We won’t take the bait. If you are interested in what The Donald has to say, you’ll find it next to our stories on the Kardashians and The Bachelorette.” That same month the Gallup organization released a poll showing just 12 percent of Democrats viewed Trump as a “serious” candidate. Comparatively, 41 percent of Republicans took him at his word.

We know who got the last laugh.

The Trump phenomenon should have reinforced the lesson that failed to grab hold after men such as Arnold Schwarzenegger, Jesse Ventura, Fred Thompson and even Al Franken jumped from entertainment into high elected office: Don’t underestimate anyone.

Last May, Chris Ladd, a contributing writer to Forbes and self-described “political orphan” who, after being a lifelong Republican, left the GOP after Trump was nominated, foresaw where we might be headed.

Ladd noted in his column that Oprah and other celebrities were “making noises” about running for president.

“Get used to it. … Washington’s celebrity firewall has been breached,” Ladd wrote. “Policy no longer matters. A pop-culture following is far more electorally potent than any form of grassroots activism. If Democrats respond in-kind, unleashing their overwhelming arsenal of entertainers on Washington, scientific articles and advanced degrees will soon be eclipsed by Grammies, Oscars or Super Bowl rings.”

“Our long era of competent, professional political leadership may be coming to an end,” Ladd lamented.

After one brief speech, at an awards show no less, many anti-Trumpers want us to accept Oprah — a monstrously rich television talk-show host with no political experience — as a potential presidential candidate, and possible Oval Office occupant.

As tennis great John McEnroe used to yell at referees: “You can’t be serious!” But those who are serious about Oprah as POTUS 46, and want the rest of us to join them, should be willing — grudgingly and for the sake of intellectual consistency — to accept the current celebrity in chief.