A person who believes in myths can be referred to as a "mythologist," especially if they study myths academically. Alternatively, they may simply be called a "believer" in myths or folklore. Those who actively engage with or promote mythological beliefs may also be considered "myth enthusiasts" or "folklorists."
A person who believes that war is wrong is called a "pacifist".
Christian??
Well ! If some person believes that his/her dreams do come true, means he believes he/she has the ability to perceive events in the future is normally called Clairvoyant.
A statement that tells what a person thinks or believes is called an opinion, sometimes known as a belief.it is known as a belief
Pacifist
In general, such persons could be called believers.
This is called an opinion.
They are called an Anarchist.
Contrapositive
The Dr- Oz Show - 2009 Myths and Lies Your Gynecologist Believes 4-107 was released on: USA: 20 February 2013
The Dr- Oz Show - 2009 Myths Even Your Gyno Believes 5-86 was released on: USA: 22 January 2014
Agnostic