Oh, but don't worry -- this is the last time they'll make the demand. [/s]
I'm old enough to remember when Abe Foxman ran the ADL and he made demands like this all the time. That's the only reason I know his name, frankly. Because he was always calling for someone to be canceled. He was an early adopter of cancel culture.
I have no idea who took it over after Foxman retired, probably because whoever it is does not commonly call everyone he disagrees with on any topic an anti-semite and demand they be cancelled.