They feel that way because they want to preserve the beautiful wilderness we all must share. They don't want to see it burned down. They don't want to see people die. They want to experience the wilderness in a condition that looks like it truly is wild.
I understand where the above poster is coming from, and I feel much of the same, BUT:
it implies that fire is not a natural part of wilderness and nature, that it is an UN-natural enemy that should be eliminated from our forests, altogether.
That might be extreme, but it actually represents much of fire management, particularly of the last half century.
Fire, as you all know, is a normal, and natural part of wilderness and forests. The real mistake is suppression of fire, and it's natural cycle, which is responsible for a large part of the ongoing danger in our forests, even not in drought years and parched conditions.