Fundamentatlists are "right" because their God tells them so.
Fundamentatlists feel that only one book is worth reading and can not be wrong in any way.
Fundamentalists are 100% sure that all others are wrong.
Fundamentalists are 100% sure that they will be rewarded and all other punished.
Fundamentalists deny evidence that is ovewhelming to the rational mind.
When a fundamentalist kills it is "God's will".
The above is true of fundamentalists of all stripes. These are the similarities.
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Common sense isn't