Very inclusive. Of course, Mormons like to present themselves as Christians, but this is controversial in the US. Personally, I don't see how anyone can think that the idea that a major revelation occurred after the death of Christ is not heretical, and thus places this sect outside the bounds of Christianity. (If Hungarians consider Mormonism to be a Christian sect, I get the impression that Hungarians do not take Christianity very seriously any more.)

At least the fundies do not say that they received any new revelations: just that they figured out the correct method for interpreting the Bible. Thus I would concede that there is no fact of the matter of whether fundies are Christians or not: denying that they are is something more akin to a political move.

A bomb, H bomb, Minuteman / The names get more attractive / The decisions are made by NATO / The press call it British opinion -- The Three Johns