Re: Why do religious people think they must prevent everyone from going to hell?
Incorrect. Every human has an innate sense of justice and fairness. Whether this empathy arises from social conditioning, the evolutionary benefits of community, or from God, is debatable. However, this exists. And did so before Abrahamic religions.
The Roman justice system, early Indus Valley civilizations, and Greek philosophers all touched on equality and “right”, and did so outside of religion.