I think you need an additional category for those that hold a belief that makes it impossible for them to accept an idea that contradicts it.
They're not necessarily insane, not necessarily stupid or ignorant nor necessarily misinformed, they just can't allow anything to interfere with their belief. Deluded is one word for it but that refers to their belief, not to, for example dating methods or the ToE - they simply reject them out of hand.
Je suis Charlie. Je suis Ahmed. Je suis Juif. Je suis Parisien. I am Mancunian. I am Brum. I am London.I am Finland. Soy Barcelona
"Life, don't talk to me about life" - Marvin the Paranoid Android
"Science adjusts it's views based on what's observed.
Faith is the denial of observation so that Belief can be preserved."
- Tim Minchin, in his beat poem, Storm.