Because people do not like to take responsibility. Also, because many religions teachings about God stem not from truth and love but from a desire to control people and erect and protect power structures.

This may seem contradictory--God loves each and every one of us unconditionally but at the same time does not who lives or dies. How can I say this? "The fact is no one dies. We return to Heaven and the cycle of soul, to soul with body and back to soul repeats as many times as soul wants. The each successive cycle is designed to challenge us with harder and harder human experiences with the goal of learning how to meet these challenges while remaining true to spiritual principles such as patience, humility, compassion, empathy and above all else, Love." That's from my https://medium.com/illumination/why-is-it-so-easy-for-people-to-believe-the-most-obvious-lies-yet-require-proof-of-god-339a2a07cc4f . You can also see my https://medium.com/illumination/god-loves-us-unconditionally-45c54c297e52 and any of the other essays backlinked in either piece