Twitter could barely believe it. On May 5, Donald Trump posted a bulletin of himself positioned in front of a taco bowl in his own little celebration of Cinco de Mayo, as well as of his business interests: “The best taco bowls are made in Trump Tower Grill.”

And the kicker: “I love Hispanics!”

Someone in the Trump campaign apparently decided that the candidate needed to make amends with the people he has been slandering since last June, when he characterized Mexican immigrants as “rapists.” A photo op with an oversize lump of chow appeared to be the best avenue. Forget a thorough exploration of what Mexican immigrants have done for the United States over the years — just eat and take a picture.

It’s all good, declared Fox News host Bill O’Reilly on his show Friday night. The backlash against Trump’s taco-op, the host decided, illustrated a presidential campaign gone haywire. “Presidential campaign already crazy,” O’Reilly said at the outset of his monologue on the taco issue. He cited some counter-tweets from Janet Murguia from the “militant organization La Raza.”

“So eating a taco on Cinco de Mayo is now offensive? That’s like eating corned beef and cabbage and saying you love the Irish on St. Patrick’s Day is offensive,” railed O’Reilly. “That’s how insane American culture has become.” Somehow we don’t remember any Trump smears against the Irish. For the sake of balance, O’Reilly bashed Latino protesters in California claiming that Hillary Clinton has been complicit in anti-immigration policies. Scoffing, O’Reilly said Clinton has no bias against Hispanic Americans. (And he did a great impression of Sen. Bernie Sanders, too.)

But really, who’s going to trust O’Reilly to blow the whistle on bigotry? Remember his response to Trump’s statement that Mexicans who cross into the United States are “rapists”? Did that set off O’Reilly’s alarms for offensiveness?

Not so much. Here’s his take on the situation, as articulated last July:

For decades Mexico City has allowed organized crime to brutalize its own people and Americans as well. Some of the drug organizations have branched out now into people smuggling. Charging money to get desperate migrants across the border. In the process many, perhaps most, migrant women are sexually molested. And that was the rape situation Donald Trump mentioned. But it’s not ordinary Mexicans doing the raping, it’s the gangsters. And Trump should have made that clear. The truth is there’s little supervision on the Mexican side of the border.

So: Trump’s offense was a general lack of clarity, not an astounding level of bigotry. Months later, O’Reilly quite amply defended those comments in a debate with Univision’s Jorge Ramos. “He didn’t say all of them were [rapists],” O’Reilly quipped. Asked by Ramos about Trump’s racist comments, O’Reilly said: “I’m trying to tell you that it’s your subjective opinion, not an objective opinion, that Trump’s a racist. There are other people who don’t think he is. All right. OK, so I’m not going to get in the middle and say that’s a racist, that isn’t. What I’m going to do is bring it back to your network. If you, the top guy, has demonized him as a racist, how can you cover him?”

In light of all that, what’s the likelihood that O’Reilly would find anything at all objectionable about a guy using a taco bowl to symbolize his love of Hispanics?

What on earth would trigger O’Reilly’s alarm for bigotry, racism and offensiveness? Certainly nothing he’s seen from Trump over their many, many years of enjoying ballgames and milkshakes together. Earlier this year, O’Reilly fielded an allegation from PBS talk show host Tavis Smiley that Trump was a “racial arsonist.” The host responded with his trove of personal exposure to Trump. “I have known the man for a long time. I have never seen him do anything racial,” argued O’Reilly in an early April edition of “The O’Reilly Factor.”

If that’s the case, Trump is an interesting fellow: someone who makes bigoted and racist remarks in public, but not in private.

How absurd are O’Reilly’s defenses of Trump? Well, consider that Trump has told falsehood after falsehood on the campaign trail; that he announces positions, then reverses them; that he has been caught in various lies. After an early March GOP debate, O’Reilly asked Sen. Ted Cruz whether he thought Trump was honest. “I’ve known him for about 30 years,” said O’Reilly. “I think he’s an honest man.”