What makes some Christians think Atheists have no morals?

Their insecurity forces them to pretend they're superior.....

It depends on who it is. Type 1. They are told what to think about atheists and morality by someone they see as an authority, and they buy it blindly.

Type 2. Primitive thinking. They might really be trying to think for themselves but they either don't have all the information, are still highly biased from what they were taught, or have serious flaws in their critical thinking skills.

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.