There's alot more to fear of death than meets the eye. On the surface, there is the fear of physically dying and the fear or uncertainty of what follows that physical death. But, there's more imo.
For the unaware, every time our identity is threatened, the idea/story/dream of who we believe ourselves to be, when that is threatened our fear of death kicks in and inspires/compels us. It's all about the image that we have of ourselves and preserving that image in front of the world.
Insulted? We must preserve our identity. If we allow this insult to stand it threatens a tiny part of our identity and that part will die, and because we fear death, we insult right back. Same with anger.
Someone says we are wrong? Well, I have a system of beliefs and I live my life by that system, and if I'm wrong, part of my identity dies; I must defend that to the hilt, all compelled by fear of death. The whole RGT forum is the fear of death in athiests arguing with the fear of death in theists.