The NYPD might stop violating constitutional rights at protests. I know, not likely, but they're in court and lost lawsuits brought by Attorney General Letitia James, the Legal Aid Society, and the New York Civil Liberties Union

The lawsuits proved that police used excessive force, made illegal arrests and violated protesters’ First Amendment rights. If they hadn't, the NYPD wouldn't be forced to giving in. 

"The Police Benevolent Association, which represents rank-and-file officers, said it would not."

With that much evidence that they are criminally guilty, how is it that the Mayor, the police commissioner, and the police union are not going to be found guilty, and removed from their jobs? 

"Protesters filed hundreds of lawsuits and civilian complaints, describing chaotic scenes with police driving through crowds, indiscriminately spewing pepper spray, breaking bones with baton strikes and numbing demonstrator's hands with tight zip ties. 

The Civilian Complaint Review Board, which investigates some allegations of police misconduct, found that at least 146 members of service who responded to the protests broke department policy"

None lost their badge, none were arrested for breaking bones, none arrested for assault with a deadly weapon, with a police cruiser.

https://gothamist.com/news/nypd-to-change-how-officers-respond-to-protests-as-part-of-legal-settlement