Many people, especially when young, feel that there is a better way for humanity to act and survive. Many people have looked for these same answers in many places, especially religion.
Religions can provide many answers about how a person can live, but no explanations about why.
If you are a person who needs explanations, you will need to look further. Science is a great tool for developing an understanding of the unknown. Unfortunately, the question of how humans can survive, is incredibly complicated and little science about it has been developed. Many people have devoted their lives to this trying to figure it out though and we can stand on their shoulders. The basic concepts behind how genetics work are quite recent and have not been integrated with the rest of human knowledge.