Then you realize that there are thousands of different religions all over the world and that most of the big ones are in turn divided into hundreds of cults as well.
Suddenly the odds of being correct is equal all across the board.

Pascal’s wager:

Religious and there is a God = you win!
Religious and there is no god = whatever
Atheist and there is no god = doesn't really matter
Atheist and there is a God = you lose

Pascal says the odds are in your favor if you have a belief