I hope you don't mean all people are afraid of death. It just isn't true. I don't really see a good reason why people should be afraid of death at all.
1) If you're religious, then you should feel fine about it.
2) If you're just spiritual but don't follow a religion, you probably believe in the soul, and aren't afraid of death.
3) If you're atheist, you shouldn't believe anything is after death... and I guess maybe can be afraid of dying because you believe that's all there is, but other than that, I don't see a reason to fear death.
When you die, you die. Worms have a party and end of story. There is no soul.
The post you quoted has nothing to do with whether there is a soul or not. I know there is. My point was that there is no reason to fear death.