Those of us who are mathematically inclined might consider Pascal’s wager, as it applies to God’s existence, and, therefore, to an afterlife.
Pascal's wager is an argument in philosophy presented by the seventeenth-century French
philosopher,
mathematician and
physicist,
Blaise Pascal (1623–1662).
[1] It posits that humans bet with their lives that God either
exists or does not.
Pascal argues that a rational person should live as though God exists and seek to believe in God. If God does not actually exist, such a person will have only a finite loss (some pleasures, luxury, etc.), whereas he stands to receive infinite gains (as represented by eternity in
Heaven) and avoid infinite losses (eternity in
Hell).”
Pascal's wager - Wikipedia
And Voltaire’s argument for society being religious:
Voltaire (1694-1778), a passionate atheist and the godfather of the aggressively secular French Enlightenment, acknowledged:
“I want my lawyer, my tailor, my servants, and even my wife to believe in God because it means that I shall be cheated, and robbed, and cuckolded less often. If God did not exist, it would be necessary to invent him. Voltaire,
God and Human Beings, 1769.
Don’t forget….like Santa, He knows if you’ve been bad or good….so be good for goodness sake!
Perhaps that's the reason for the antagonism......fear.