why does christianity have several sub religions?

You have brought a really challenging question that needs to be discussed among us Christians. What does the Bible say about all this in the book of 1 Corinthians 14:33 says "For God is not the author of confusion, but of peace, as in all churches of the saints". Now as we can see when Jesus was on earth He did not say for the catholics to do this or that, or Protestants to do this or that, but rather He addressed us as believer's and the reason I believe there is so many different denomintions is because first and for most the devil is the author of confusion. See its not the fact that there different denominations but people have given room to the devil to confuse them in there ways which cause us to separate from each other so the Gospel will not be preached in its fullness of truth. So every denomination is putting down the other. See when Jesus came He said " I am the way,truth(reality), and the life" He did not say that any other person was the way, truth and life. I believe that if a person receives the Lord Jesus they are saved. Now how that individuals grows is another thing. For example, I have two brothers and a sister and we are all from the same parents but when we grew up we had different opinions on things and understanding of things but did it stop me from loving them the same no! a thousand times no!!! But yet we come from the same parents. This is the mentality that Christians must have because we all are of God and if we have this mind-set we will overcome the denominational barrier. See Jesus did not push anyone away when they came to Him for anything because He loved each and every single person and He said that we should love one another.But coming back to the whole sub religions I believe that it is a way the devil is trying to distract and separate Christians from our main focus which is preach the Gospel all over the world. I live by the Word of God and if Jesus said the Word of God is truth then it is so and I don't hate other religions or want to argue with them but I want them to see Jesus in my eyes and the love He has for every single person on earth and to me that is Christianity in its fullest if a denomination does not hold these foundational principles then they need to read about Jesus the "Author in finisher of our faith" Hebrews 12:2. Amen

you know this is a good question. i know people from differnet faith, and some feel if someone isn't or don't belive what they do they are worthless. my thing is we all belive in God, so what the problme. so we all do it different. but ya if you notice, these are the ones who don't practice what they preach about treating other or judging