The concept of a hell is in religion, but it compliments what we believe outside of religion. Our culture reinforces the concept of hell.
It is popular today in conservative religious circles to lament the “culture”. That is, some religious people say the culture pulls people away from the faith and toward sin. This leads people to an afterlife in hell.
Our culture fits Christianity to a “T”. Christians are inside the culture. Ours is a culture of individualism, of succeeding while watching others fail.
A religious concept in which all boats rise would not fit this individualism. What works is the concept of me winning by being a better Christian than you. Because of that, I get onto heaven and you don’t.
The link below says, Religion is, essentially, anthropology: our religious ideas and ideals are projections of our human nature, writ large.
Some may remember a time when there was no March Madness in college basketball or “National Champions” in college football. The American sports fan would not stand for it. Winners and losers had to be determined.
The Apostle Paul called on Christians to win the race. There must be winners and losers.
At the risk of over generalizing, the cultures of Japan and China are much less about the individual and more about the group’s harmony and success. The religions of those countries reflect such cultural values.
Parts of the culture are deemphasizing winning. Within that cultural change is a Christianity that deemphasizes hell.