Now "fundamentalist" is used to designate anybody of any group who sincerely believes the published doctrines of the group (fundamentalist Democrat, fundamentalist Druid, even fundamentalist Darwinist)
--- but with the pejorative connotation that the individual is also
self-righteous and up-tighteous, scorns rational discussion,
lusts for the coercive power of the State to advance his cause Let's retire "fundamentalist" and find a more acccurate terms, shall we?
Fine with me. How does 'fanatic' -- or 'zealot' sound to you?