There are at least 50,000 types of christians in the world, they mostly believe that the way they interpret the particular version of the bible they favour to be correct and all the others are wrong. Very few sects will accept that other sects are as christian as they are.
This of course is a mockery of christian so called teaching. Matthew 7:1-5 comes to mind, and of course the commandment "Thou shalt not bear false witness against thy neighbor"
So which type of christian are you? The type who accepts those who believe they are christian are christian or the type that goes against bible teaching and judges others?
What you have is, Those Christians you follow the teachings of man's.
And those Christians who follow the teachings of Christ Jesus.
As Christ Jesus condemned the teachings of man's in Matthew 15:7-9.
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7--"You hypocrites, well did Esaias prophesy of you, saying,
8--"This people draweth nigh unto me with their mouth, and honoureth me with their lips; but their heart is far from me.
9--"But in vain they do worship me, teaching for doctrines the commandments of men"
There you have it in Verse 9, Christ Jesus condemning the teachings of man's.
Now as to why would I want to follow man's teachings, Seeing that Christ Jesus condemned man's teachings.
Also in Matthew 24:4-5
4--"And Jesus answered and said unto them, Take heed that no man deceive you.
5--"For many shall come in my name, saying, I am Christ; and shall deceive many"
Notice in verse 4, Christ Jesus saying, let no man deceive you,
Now many people are being deceived by the teachings of man's.
Notice in verse 5, Christ Jesus saying,
For many shall come in my name,
Who else besides Christians professes to come in the name of Christ.
Then Jesus said, ( saying I am Christ and shall deceive many.
If you take Christian and abbreviated it,
It becomes Christian = Christ
Christ = Christian
Therefore many Christians shall come professing to come in the name of Christ, but they are the false Christians.
To deceive many people by the teachings of man's.