Do people believe in God mostly because they are afraid of hell? (spin-off topic)

[RLBailey (Ray Bailey)]

One of the first refutations of the doctrine of Annihilation is:

GotQuestions.org
In relation to the nature of hell, annihilationists misunderstand the meaning of the lake of fire. Obviously, if a human being were cast into a lake of burning lava, he/she would be almost instantly consumed. However, the lake of fire is both a physical and spiritual realm. It is not simply a human body being cast into the lake of fire; it is a human’s body, soul, and spirit. A spiritual nature cannot be consumed by physical fire. It seems that the unsaved are resurrected with a body prepared for eternity just as the saved are (Revelation 20:13; Acts 24:15). These bodies are prepared for an eternal fate.

Bolding and Italics Mine

The premise is that humans are automatically imbued with everlasting life from birth.
How does that square with the need for a “Tree of Life” which is clearly a “spiritual tree” (as discussed in The Troublesome Tree of Life.

It seems to me that “It seems that the unsaved are resurrected with a body prepared for eternity just as the saved are” is a pretty big assumption to make for the “Eternal Burning of Ever Living Souls”.

Ray