Interested in reading more about denialism, skepticism, or critical thinking? These are a few of the books I would recommend sampling:
The Demon-Haunted World: Science as a Candle in the Dark – Carl Sagan
Denialism: How Irrational Thinking Hinders Scientific Progress, Harms the Planet, and Threatens Our Lives – Michael Specter
Fads and Fallacies in the Name of Science – Martin Gardner
Flim-Flam! Psychics, ESP, Unicorns, and Other Delusions – James Randi
The Paranoid Style in American Politics – Richard Hofstadter
The Panic Virus: A True Story of Medicine, Science, and Fear – Seth Mnookin
Voodoo Histories: The Role of the Conspiracy Theory in Shaping Modern History – David Aaronovitch
Why People Believe Weird Things: Pseudoscience, Superstition, and Other Confusions of Our Time – Michael Shermer
And here are a few websites to explore:
Skeptoid: Critical Analysis of Pop Phenomena