An organ is not a personality maker...you are just one of those that believes an organ houses emotions like love and sadness?...it doesn't it is an organ that serves for the body's functionality! A person may change because they have a new life with a new healthy organ, getting more oxygen, healthy blood levels, you know, wellness feelings they didn't have before they had the transplant. They feel better, they are happy and are more than likely grateful to have the gift or at least the chance to plan for the future again.
You seem to think part of the soul is attached to the organ? Then part of it didn't go to heaven or hell, see how ridiculous you sound? Souls do not exist!
Imagine you are on the list to receive a new heart, you are a straight/not gay person, the healthy gay guy who died in an accident was a donor, you received his heart, according to you will now have gay tendencies? Lol, get an education! Learn the facts, they are there!
You will feel pretty stupid I guarantee.
You will find that most peoples personalities will change after a traumatic event occurs in their lives. This has noting to do with the gods though.
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.