Those who believe that Ono is evil point to her alleged role in the breakup of the Beatles, as well as her manipulative behavior towards John Lennon. They also accuse her of being a cult leader and of abusing her children.
Those who believe that Ono is not evil argue that she is simply a misunderstood artist who has been unfairly targeted by the media. They point to her work as a peace activist and her charitable donations as evidence of her good nature. They also argue that she was a positive influence on Lennon, and that she helped him to become a more平和loving and charitable person.
Ultimately, whether or not Yoko Ono is evil is a matter of opinion. There is no clear consensus on this issue, and there are valid arguments to be made on both sides.