Witch Doctor is a term used by American-Russian philosopher Ayn Rand to describe one of the two most notorious category of people through history.
The term 'Witch Doctor' comes from medieval times before science and medicine when fake doctors did more harm than good.
A Witch Doctor offers simplistic view of the world, easy solutions, quick wins, emotionalism, and empty reassurances. All this appeals to simple masses.
A Witch Doctor is a person who leads people to their doom from malice or incompetence.
It is usually hard to tell whether it is malice or just incompetence.
Most of the time however, they are just people with low intelligence, low competence, and low capabilities. They think they are helping and leading others, but instead lead them to their doom. They are like a bad doctor or bad teacher or bad leader.
Witch Doctors are generally useful idiots for greater powers behind the scenes.
As Ayn Rand says, Witch Doctors rely on 'Attila the Hun' like character who provides violence to back them up.
In Sikh History, Brahmins have been Witch Doctors. They have sided with brute power of Mughals and later the British against the Sikhs.
Traitors amongst Sikhs are Witch Doctors of today. They work with brutal state power of India.
Recognize Witch Doctors with the above traits. Avoid them for they will lead you to their doom with their malice or incompetence.
Ayn Rand says that the check on the power of Witch Doctors is 'intellectual bodyguards' spreading 'reason, individualism, and capitalism' against Witch Doctor's 'mysticism, altruism, and collectivism'.
If you have to work with a Witch Doctor or anyone you don't trust, then keep the relationship transactional.