Performance artist and anti-Israel activist “Crackhead Barney” refused to say why she harassed Alec Baldwin at a New York City coffee shop this week in an utterly bizarre interview with Piers Morgan Wednesday — and insisted she was “maimed” by the actor.

The left-wing agitator’s appearance on Morgan’s “Uncensored” was surreal from the get-go.

“I’ve been waiting for you Piers f–king Morgan!” the popular ambush interviewer, who boasts nearly 100,000 followers on Instagram, screamed after she was introduced on the program.

Crachead Barney’s face was painted white with bright red lipstick. She wore a messy blonde wig, a neck brace and a thick pair of sunglasses. Her top was pulled up to her neck revealing her nearly bare chest.

The anonymous personality from Jamaica, Queens, held a single crutch and her right arm appeared to be in some sort of cast or sling — and she wore a diaper, which she told Morgan she’d put on especially for him.

Morgan asked her about her confrontation with Baldwin at the coffee shop Monday, in which the performance artist filmed herself demanding the actor say “Free Palestine” until he slapped her phone out of her hands.

She immediately screamed that Baldwin attacked her and that she was the victim.

“What did I do to Alec Baldwin? Piers, do you see the damage that Alec did to me?” she asked, pointing to her crutches.

“Do you see the damage? Look at my arms! Look at my arms, Piers! Look at my neck! I was maimed by a white man on Monday!”

Morgan assured her she wasn’t “maimed.” She called the host “another white devil” during a tirade that was so animated it sent her wig flying.

“You don’t have to shout at me, we can have a civil conversation,” Morgan told her.

“Piers f–king Morgan … What’s wrong with saying Free Palestine?” she asked. “Piers, can you say ‘Free, free Palestine’ for me?” 

Morgan tries to respond but struggled to over Crackhead Barney’s yelling. When he’s able to get a word in, the host said, “I absolutely believe that Palestine should be free.”

His guest then demanded he tell her how to make that happen.

Morgan, who is also a Post columnist, tried to bring the conversation back to the Baldwin incident and asks Crackhead Barney again why she confronted him.

“This is the third white man to beat me this week,” she said, insisting she was attacked.

“Yesterday my white boyfriend beat the s–t out of me.”

Morgan suggested that Crackhead Barney was making a joke out of a serious war that has left more than 34,000 people dead.

“Why are you making it a mockery?” Morgan asked as she shoved food in her mouth.

“I’m always serious,” she shot back, pretending to cry.

“I’m a victim. I’m a victim, Piers,” she said as the food dribbled over her face and chest.

Morgan tried one final time to get the incredibly chaotic agitator to say why she confronted Baldwin. Then she appeared to get upset.

“Look, Piers, you’re trying to spin this into some bulls–t. I know exactly what you’re doing, Piers, and your tactics,” she said.

“You’re British, you’re f–king annoying, you eat tea and crumpets, you have your pinky in the f–king air, you support the queen. F–k the crown, f–k Buckingham Palace,” she ranted.

“Now I’m getting angry. ‘Cause, Piers that’s what you do, you set people up for s–t.”

“I know exactly what you’re doing, Piers. Because I do it, too, Piers. And I have a f–king audience. You think you could set me up, Piers?” her unhinged rant continued.

Morgan calls her appearance ”one of the most pathetic things I’ve had to endure” before he cut her off.

Crackhead Barney approached Baldwin inside Maman on University Place in Greenwich Village on Monday. She repeatedly pestered the 66-year-old to say “Free Palestine” and promised to leave him alone if he did.

The podcast host, who is known for ambush interviews, also brought up Baldwin’s criminal case in New Mexico, where he’s facing manslaughter in the fatal shooting of cinematographer Halyna Hutchins on the set of “Rust.”

The Emmy winner grabbed the activist’s phone as she tried to snatch it back. He pushed her out the door and deadbolted it to keep her out, footage she posted showed.

She then stalked around outside talking to herself about how Baldwin had “assaulted me, I should press charges,” while calling random passersby racists and “Zionist bitches.”

After the incident, she said in a statement: “My performance art and confrontational media is a statement about the double standards of society in the US.

“As the US supports Israel in the genocide of Palestinians, here at home, powerful people maintain a facade of politeness and dignity while we export death and terror around the world,” she continued, adding that the entertainment industry “has been largely silent” over “Israel’s genocide.”

Her recent videos largely consist of her swearing at cops and telling pro-Israel demonstrators such things as “You know they’re not coming home, right?” referring to hostages kidnapped by Hamas.