Bill O’Reilly tonight warned of a “mini-crisis brewing in New York City.”

“The Factor” host said that the NYPD is so angry over anti-police demonstrations and the murders of two officers that authorities are now engaged in a work slowdown, with arrests for minor crimes way down in the last part of December. Thousands of officers also continue to turn their backs to New York Mayor Bill de Blasio.

O’Reilly said de Blasio apparently believes that there is injustice among his own police officers.

“That point of view that the left is putting out there – saying that police are instruments of oppression, rather than a protective force – is causing outrage on the part of the cops themselves,” O’Reilly said.

Before de Blasio was elected mayor, the NYPD drove down murders from more than 2,000 in 1990 to 328 killings last year.

“That's a tremendous success, but de Blasio's viewpoint is elsewhere. He sees the protesting cops as the problem,” O’Reilly said.

O’Reilly said that the police who protested de Blasio’s presence at officers’ funerals “were sending a valid message.”

“The fact that they attended the funerals showed their respect for the families, but they don't have to honor anyone at the service, especially someone who is putting the police in danger,” O’Reilly said.

Less than a day after Officers Liu and Ramos were murdered, 18-year-old Devon Coley allegedly posted a photo to Facebook which showed a man shooting into an NYPD car. The Brooklyn DA asked for $250,000 bail because Coley has a long arrest record and is an alleged gang member, but Judge Laura Johnson ruled that there should be no bail, O’Reilly explained.

Johnson had to be re-appointed to the bench by New Year’s Eve, and most people felt she had no chance after the “outrageous decision,” O’Reilly said.

“But Mayor De Blasio did re-appoint her, symbolically spitting in the face of his own police department. And de Blasio wonders why these men and women are turning their backs on him, why they despise him? […] No sane judge does that, and no responsible mayor condones it.”

O’Reilly reiterated his belief that de Blasio should resign his position because he has directly insulted each and every member of the NYPD. He cautioned that de Blasio “is going to ruin the nation's largest city.”

“Policing is a dangerous job. A few police officers abuse their power, the system must hold them responsible for that, but the vast majority of the NYPD and all other American police agencies do protect us from evil, from harm, from destruction. The one thing the police cannot protect us from is a politician like Bill de Blasio.”

Watch the Talking Points Memo above.