Something I've always wondered about.

Within the Christian world, there are numerous denominations of the faith such as the following: Baptist, Episcopal, Pentecostal, Mormon, Free Will Baptist, Methodist, Church of God, Presbyterian, Wesleyan, and Catholic. Why do we need all of these different factions within ONE religion? Why can't we be like it was back when Christianity just started: ONE denomination, ONE way to learn about Jesus. The way I see it is that all of these denominations are opposing opinions and ideas about the Bible. Individuality is good but face it: The Bible does not waver to everyone's ideas. It's there and it never changes. Basically what I'm saying is that I believe that there should only be one denomination. The kind in which people just read the Bible, learn from it, and try to be like Jesus. Simple as that. No ifs, ands, or buts about it. If you still don't understand what I'm saying here's an example: Two Christian guys. One named Billy and the other is Johnny. Billy goes to a church with an undefined denomination, but he reads his Bible, does everything it says, follows The Commandments, and everything that we should be doing. No questions asked. Well, we have Johnny over here who reads in his Bible and then says " Hey!, you know I don't really believe in this part because no one else in my church does either". So a whole section of the Bible is completely ignored because it goes against a denominated church's doctrine. Now I want people to understand is that I'm not trying to say I'm completely against denominations. I just believe that we should do as Jesus originally intended for us to do and not to create different kinds of churchs for incomplete or ludicrous interpretations of the Bible. If your wondering which denomination I would pick for everyone to follow, I would say the oldest one, Catholicism. It makes sense to me because Simon Peter was the first Pope. "I have so named you Peter for upon this rock I shall build my Church". Jesus said that and the church he talked about became the Catholic church. Peter was the leader and the leader of the Catholic Church is the Pope. Every kind of ritual and prayer services would be as Peter did 2000 years ago. They just follwed Jesus and didn't ask questions. If there is anyone who reads this with a denominated church and you feel offended, I deeply apologize. I don't want to offend anyone, I just wanted to say what was on my mind. Maybe someone agrees with me out there. God Bless and Pax Vobiscum.