The protestants who say Catholics are not Christians are confused, to say the least. The Mormons and witnesses cannot justify their claims based on the Bible.
It boils down to: "The only Christian Church that is truly Christian is the one that I belong to." (There are also some Catholics who think that all Protestants are not Christian.) An uninformed member of a denomination would naturally assume that the church from which his church broke away must have been defective somehow. And of course any church that breaks away from his church must be wrong as well. Fortunately, not all Christians are so insecure and xenophobic.
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.