Cavuto was EXTREMELY kind to her. He wasn’t like Chris Matthews or Joe Scarborough tearing apart a vulnerable person. She shouldn’t have been allowed to go on tv. At least my generation, the baby boomers, no matter how bad they were, were often articulate when interviewed on television.
I really believe that he’d spoken with her before her on-air interview and he pegged her for what she wasn’t right then.
I think he then decided that he’d use the Socratic method of learning with her and ask her questions designed to push her to her own conclusion that what she was espousing - had been taught - wasn’t possible. Cavuto was patient and understanding and always with the right questions. When he finally realized she was a lost cause only then did he end up just telling her there was no way to do what she and her other idiot students wanted.