Hasn’t anyone learned from Harvey?

Things were supposed to be different once that particular monster was put away — along with Cosby, et al. — but a younger generation of Hollywood men are accused of out-doing mere sexual harassment.

Consider the past few weeks: Armie Hammer allegedly self-identifying as “100% a cannibal” and sharing fantasies of rape and bondage with multiple mistresses, along with breaking and eating their bones.

Marilyn Manson, this week accused of extreme physical, sexual and emotional abuse by actress Evan Rachel Wood, among others — which he has denied.

“I’m not a fan of cancel culture,” stylist Love Bailey posted Tuesday night, “but when someone like @marilynmanson pulls a gun to your head, it’s time to speak up.”

Bailey was 20 years old and working on a photoshoot at his home.

“I felt stunned and I was shocked,” Bailey claimed to Daily Beast. “I was in this state where I was asking myself, ‘Isn’t he too famous to kill me?’ ”

Phil Spector and O.J. Simpson would disagree.

Shia LeBeouf actually hired one-time O.J. lawyer Shawn Holley to represent him in a lawsuit recently filed by ex-girlfriend FKA Twigs, who accuses LeBeouf of sexual battery, assault, extreme emotional and psychological abuse, of knowingly giving her an STD, and of shooting defenseless dogs.

Stylist Karolyn Pho, who also dated LeBeouf, made similar accusations.

“You know I’m going to kill you,” Pho says LeBeouf threatened, in court docs.

According to the lawsuit, LeBeouf — like just about every other celebrity alleged deviant on this list — “has sought to excuse his reprehensible actions as the eccentricities of a free-thinking ‘artist.’ ” (LeBeouf has denied many of the allegations in the lawsuit.)

And, of course, there’s Manson’s pal Johnny Depp, who has so thoroughly trashed his reputation that a U.K court recently ruled that legally, Depp can be called a wife-beater.

I was thinking about all this while reading a lengthy New York Times obit for Jamie Tarses, who died way too young at 56. Tarses smashed Hollywood’s glass ceiling in the 1990s, becoming the youngest female president of a major network ever at age 32.

There was no woman in television with her power; she was responsible, in large part, for hits such as “Friends” and “Frasier.”

Tarses made a lot of people a lot of money, yet consider the standards to which she was held in the oh-so liberal, self-congratulatory, enlightened world of 1990s Hollywood.

“Women are emotional, and Jamie is particularly emotional,” one male agent told the Times magazine back then. “You think of her as a girl, and it changes how you do business with her.”

The author of that piece, by the way, was a woman.

Tarses was castigated by male colleagues — oh, the hypocrisy — for romances with stars such as Ryan Reynolds and Matthew Perry. So vicious was the criticism that Tarses took herself out of the game in 1999, reinventing herself as an independent producer.

“I just don’t want to play anymore,” she told the L.A. Times in 1999.

An immense female talent drummed out of Hollywood for being too ambitious, too talented, too smart. Decades later, post-#MeToo, Shia LeBeouf allegedly runs around L.A., hunting and shooting stray dogs to “get into the ‘mindset’ of a killer” for a role.

No way only his girlfriend knew about that. Then again, not everyone knew about Harvey, right?