As Bruce Dickinson said, "THE PUNISHMENT IS DEATH FOR ALL WHO LIVE"
As Sweeney Todd once famously said, "WE ALL DESERVE TO DIE! EVEN YOU MRS LOVEITT, EVEN I!".
If someone has reoccuring fearful thoughts of death, they must totally think the world revolves around them. As if the world would be a different place when one person dies. Just imagine the blissful tranquility of death, no worries. Just peaceful, silent, numb, nothingness. Nothing matters if you dead, that's so blissful. No pain once your dead. Golly, don't I sound morbid? hehe. I don't deny I'd rather live for now babe...
But what your saying about everyone DOES fear death, NO THEY DON'T.
A panic attack while someone holds a gun to you head is a reflex, like blinking when someone claps in front of you. That doesn't mean you where dying of the fear of them twating you. It's not FEAR OF THE HEART, just a reflex, built in thing. Also, I'd feel regret for the effects of my death on my little brothers and sisters. But that is REGRET, not fear.