You're forgetting a few prime things in this analogy.
Parents tell the story, but around age 6, the story gets lame. Simple questions happen: How does he have time to visit ALL the good kids? How does he fit down the chimney? Doesn't he have to go to the bathroom real bad after downing all the cookies and milk? No one can live in the North Pole with a toy factory! Etcetera.
The Santa story only involves one day of the year, toys (which become less important), good or bad behavior, lives in the North Pole.
Now the god stories are much, much different. Some have wives and kids, some don't have wives BUT they have a son. This god created everything and he even created... (wait for it).... SANTA CLAUS! This god also loves you, created you (Santa didn't do THAT!), blesses you each and every day, and you don't need a tree in your house to "accept" gods or their offspring.
Older kids say Santa Claus is not true. Adults say he's not true. There are no schools (seminaries) to devote life, the givings and teachings of Santa Claus or the elves, there are no churches to honor him.
In my humble opinion, the Santa Claus story is an awful, horrible way to pine children to believe in religion. It basically says, "Look, the story of Santa told you that if you were good, you got gifts. Well, now that you're older and wiser (age 7), look at your older peers who all go to church and pray. How can they all be wrong?"
Excuse me while I grind my teeth....