Yet you fail to give reasoned explanations to why a person should believe in something supernatural and illogical, characterized by extreme naivism.
Do you expect me to believe in something that was created before man knew what gravity is or that the earth is round, or the fact that christianity is not the only religion to exist on this planet? One can say that christianity itself has undergone countless evolutionary transformations while abolishing smaller and weaker religions along its path.
Why must everything be explained? What exactly is religion and why are there so many and differing versions of how our world came into existence? What is time for that matter?
Ignorance. Desperate attempts to explain the unknown. Attempts to create structure and meaning into our simple lives. This is where evolution once more comes in: put two groups of people in two highly different and enclosed areas. After a while you will notice two new and distinct cultures with unique subcultures, values and beliefs, ideologies, etc.