The correct use of the language does not bend to presonal preferences, Bill Clinton to the contrary notwithstanding.
because the term you state as correct is closer and sounds like term "Christian Fundamentalists" and that is a problem
No, it isn't, any more than it is a problem to use the same word to refer to the local "county police" and to the Taliban "religious police". Persons of normal intelligence can keep track of which is which.
I disagree...Correct use of language doesn't always get the point across to the people...Anyway, Islam is fascist in its nature, it doesn't necessarily mean the fascism was injected from Hitler or Mussolini.