I can see you're not buying it.
And, you shouldn't.
Because, it's wrong.
But, time after time, I hear the people defending their own theological (or moral, or political) positions on the same principle of logic: if the alternative options given are wrong, then the remaining option available must be right.
Except... it isn't.
I often ask people, "Why are you a Christian?" (or, Muslim, or Catholic, or Baptist, however they choose to define themselves). They almost always give me one of two answers (and both scare the bijeevies out of me).
1: "It's what I grew up believing" or "what I was taught by my parents (or friend's parents)."
2. "It's not what I grew up believing, different than what I was taught growing up, since that was wrong."
These two answers are frightening because they presume that there is no additional information worth considering to help them determine how to build a meaningful relationship with God. There are 21 major divisions of religious understanding in the world today, over 32,000 different denominations of Christianity. You've tried two and you're comfortable with this simply because it's not something else that you're not comfortable with?
So, what do you do?
Should you spend the rest of your life learning and evaluating all the different kinds of religion (or not religion) to find the one that is right?
Well, that certainly wouldn't get you very far.
Martin Luther saw a number of problems in the Catholic Church of his day. Most of Catholicism he agreed with, by the way. There were just a few points of practice based upon theological principle that he decided were worth challenging. He left Catholicism, sort of, on the basis of these seven principles and established a new religious order, Christian Protestantism.
Using this same justification, John Calvin saw some problems with Lutheran Christians and branched off in a new direction. just as Henry the eighth would begin the Anglican Church, and John Alexander Dowie would begin the Pentacostal movement. They all began with the basic premise that what they understood about God (what they had been taught by their parents) was right, except something that they suddenly couldn't reconcile, so they created a new position of faith (a denomination) that was the same as their previous position, only with a few adjustments. (Sometimes these adjustments were made on the basis of theology, other times by personal preference.)
This is the same basic rationalization process that I get from everyone I ask why they choose a particular religious persuasion: it is what I was taught by my parents or it is different than what I was taught.
Why not just work the problem?
Instead of looking for another number, drifting out there for some reason or another, why not just ask the question?
If we know that two plus to can't be five, why do we presume that someone else must have the correct answer, just because it is different? (Because, there are a lot of different answers out there.)
Do you want to find God?
Look for Him.
In Jeremiah 29:13, we're promised, "You will seek Me and find Me when you search for Me with all your heart."
Instead, we settle comfortably with whatever group that seems to have come up with the same answer (ignoring or chastising those who are different: all 5.6 billion of them). Two plus two is really nine. Just ask anyone.