That's simply what it is. The other examples you give are discrimination against people. Religion is not a person.
If someone was irrationally against people of a particular religion, then they would be called "anti-"... as in "anti-Islamic" or "anti-Christian" or "anti-pagan".
Disliking someone for their religion is different from disliking religion.
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.