This happens on every airline, and more than half of the ‘crazy karens’ are White. There are lots of YouTube videos of cop and security guard cameras removing people from planes and arresting them.
Before she was a nurse, my daughter was an EMT for a fire station - Loudon County VA.
One day, the station got a call from the control tower at Dulles airport. Just before takeoff, some passenger had a mental breakdown like the lady here. She got in the ambulance with her partner and they drove out onto the tarmac. The guy was on something. She, her partner, and two cops had to restrain him and get him off the plane.
I asked her what happened to the guy, but she didn’t know. The job of an ambulance EMT is to just stabilize and deliver the patient. Once checked in, they return to the station. Her guess was bath salts or spice.