Use the name?Imaginary you say? Jesus has a name which is above every name, how many times in a day do you use his name?
everready
Never, even in vain.
Santa Claus and the Tooth Fairy are widely known also, and you don't believe in them do you?
The bible talks about so many different gods, most of which are of Canaanite origin; El, Elohim, Yahweh etc.
Of course real history and real archaeology tell us that the Israelites or just a branch of Canaanites who are indigenous to the area and did not migrate from elsewhere. They invented many stories to make their sect appear they have more legitimacy than it did. That's a common trait for many cultures.