Thos particular Christians are probably brainwashed yes. But they are not all like that. There are moderate theists; who leave their faith as a private matter and use their brains in the real world.
I don't know about "brainwashed" but I pity some of them. They have been brought up to be as ignorant as their parents in a seemingly never ending pile of nonsense.
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.