If you don't stick with the "eat it or go without" you will quickly become a short order cook. He isn't stupid, he knows you will give in and that needs to stop. You offer him a healthy meal and it's up to him to decide how much of it he wants to eat.
Period. Start instilling a 1 bite rule. He has to try one bite of everything on this plate (from a "normal" meal - 1 main dish and a couple sides) before he can leave the table.
He can dislike something but he must at least try it before refusing it. Sometimes it takes trying something multiple times before one develops a taste for it. It's also a good idea to make one of the dishes something you know he will eat, so he will eat SOMETHING.
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.