The pervasive denial of death is a denial of reality, and thus a denial of God. Death is an ugly, painful reality. But it is real, and the Christian faith is not about pretending that it is uncertain, merely potential, or trivial. We are not to paper over the reality of death. Souls are not immortal.
Souls die, when bodies die.
The death of a body would then be no worse than the loss of a limb. Christianity does not teach us that earth and heaven are eternal, it teaches us that earth and heaven will be replaced with a new heaven and a new earth. Resurrection is the Easter message. Christianity speaks of new life, not continuation of old life. Christianity affirms the reality, the pain, the hurt, and the ugliness of death.