It's obvious that a biblically-faithful Christianity is the only source for truth and salvation. All other ways lead to destruction. The question is whether the more extreme versions of Fundamentalism are any more faithful to the Word of God than the various sects listed above. If I'm told that I must use only a certain Bible translation, wear only certain attire, attend only certain churches, or listen only to certain types of music in order to qualify as a "real" Christian --how is that any different from being told that I must observe certain rituals or follow certain laws in order to be "really" saved? No one who adheres to the Scriptures faithfully, obediently, and honestly can do any damage to those around them. Their lives will be marked by love, joy, peace, kindness, humility, etc., and Christ will be vividly seen in their daily walk. They will be a help and a blessing to those around them; an encouragement, not a frustration; pointing out sin in love, and not with gleeful satisfaction. The trouble is, it's becoming harder and harder to find such people, and that is not completely the fault of cultists or atheists.