You think he is a historical person and was made god after his dead. Then it is in fact a myth

I read about Celtic and Red Indian gods. They seem to follow a certain pattern. They all have a god for their tribe only. He is seen as the godfather, all the members are his children. He has supreme properties and let the tribe to a new promised land. Sometimes his attributes are connected to animals. My theory is that these gods were originally real men, that formed the tribe and went to a new environment.