The childish heaven fantasy was invented by cowardly morons.

Roughly seven-in-ten (72%) Americans say they believe in heaven — defined as a place “where people who have led good lives are eternally rewarded,” according to the Pew Research Center’s 2014 Religious Landscape Study.

72% of Americans have a cowardly belief in a magical 2nd life, even though this childish fantasy is impossible. 72% of Americans are cowardly morons. 72% of Americans are insane.

Wikipedia - Criticism of the belief in heaven

Anarchist Emma Goldman expressed this view when she wrote, "Consciously or unconsciously, most theists see in gods and devils, heaven and hell; reward and punishment, a whip to lash the people into obedience, meekness and contentment."[86]

Many people consider George Orwell's use of Sugarcandy Mountain in his novel Animal Farm to be a literary expression of this view. In the book, the animals were told that after their miserable lives were over they would go to a place in which "it was Sunday seven days a week, clover was in season all the year round, and lump sugar and linseed cake grew on the hedges".[87][88]

Some have argued that a belief in a reward after death is poor motivation for moral behavior while alive.[89][90] Sam Harris wrote, "It is rather more noble to help people purely out of concern for their suffering than it is to help them because you think the Creator of the Universe wants you to do it, or will reward you for doing it, or will punish you for not doing it. The problem with this linkage between religion and morality is that it gives people bad reasons to help other human beings when good reasons are available."[91]