Saying that atheism is a religion is like saying science is a religion. Neither of them accept anything by faith, only by proof and logic. In my personal case, I don't believe in any type of god because I have no reason to. I've grown so far beyond the idea of a personal god that I no longer bother arguing with myself, what if? Similar to when you reach that certain point in life when you realize Santa Claus never existed. You don't need to question it, you know (not believe). If you want to go so far as to say, There's no proof Santa doesn't exist, then, there's no proof Luke Skywalker doesn't exist, or Gandalf, or Stewie Griffin, Pikachu, and Zeus. You don't give them the benefit of the doubt, do you?
A. With that logic in mind, consider how many different gods there are. Can I say nearer 100,000 (perhaps thousands more) that have risen and fallen over the centuries in various parts of the world?
You worship one god, you might be pissing off one of 99,999 other gods. Let's see your odds:
1:100,000
You have a 0.00001% chance of having chosen the right god.
B. I think that anyone chooses a religion for the sole purpose of being saved isn't true to that religion. You can't be a true theist while saying, "I might be wrong, but I have a 50:50 chance, so I'll believe just in case." Assuming a god did exist and ask for unquestioning loyalty.. is he going to be happy that you believed in him on a "just-in-case" basis?