If first Century Christians and all others since then, have understood the Bible and Salvation, Why do ..?

Absolutely. Early Christian Leaders intentionally omitted the Gospel of Thomas from the New Testament, because it speaks about additional ways of achieving salvation, besides through Jesus. Thomas was a half brother of Jesus as Joseph had children from an earlier marriage.

I cant really gove you an answer,but what I can give you is a way to a solution, that is you have to find the anglde that you relate to or peaks your interest. A good paper is one that people get drawn into because it reaches them ln some way.As for me WW11 to me, I think of the holocaust and the effect it had on the survivors, their families and those who stood by and did nothing until it was too late.