They should have made her leave.

A breakdancing pioneer from the Bronx called Thursday for an investigation into the Olympic Association for allowing widely ridiculed Australian dancer RayGun to compete in Paris despite such an embarrassing lack of skill.

Richard “Crazy Legs” Colon said the dancer – who made waves after losing all three of her fights 18-0 on Friday – should have been better vetted by officials before making a mockery of the sport in its debut on the world stage.

“There should be an investigation into why the World DanceSport Federation allowed this to happen,” Colon, 58, told the Post.

“Participation in the Olympic Games should have required a certain level of expertise.”

Rachael “RayGun” Gunn drew criticism online for her incredibly awkward expressive dance-style moves, including twists on the floor, silly freezes, and a “kangaroo hop.”

The 36-year-old University of Sydney professor’s performance was such a disaster that critics accused her of “deliberately getting zero points” – and she was later parodied by comedian Rachel Dratch on the “Tonight Show Starring Jimmy Fallon.”

“Breaking comes from a culture of people who have had a hard life – so when we see something like that, we’re like, ‘Yo, is this a joke?'” Colon said of RayGun’s overly “academic” expressive dance style.

“Maybe it’s a hobby for them – and that’s fine. Do your thing, girl, have fun,” he said. “But you’re on the wrong stage.”

“You can’t just go there and destroy an entire culture,” he said.

Colon attributed the possible Olympic blunder to “a flawed system” that had failed to create a “minimum acceptance standard” for the new sport.

“You don’t have to be an expert to drive a car, but you have to be good enough not to hurt other people on the road,” he said, comparing their maneuvers to a car accident.

The awkward B-girl took the place of more talented Australian breakdancing talents, probably because they lacked the resources or money to make it to the Olympics, Colon said.

“It would have been nice if she had retired,” he said. “She took away someone else’s opportunity.”

Still, he said some of the “hate” she received online was unjustified, such as criticism from people who criticized her green and gold nerd tracksuit.

“The outfit is secondary,” he said.

But a bad fracture is a bigger problem.

“She simply lacked talent,” he said.

On Thursday, RayGun broke her silence in the face of online backlash to her performance, saying, “I really took it very seriously” and “worked my ass off preparing for it.”