Actually I think he means anyone that disagrees with him on anything. Obama uses his rhetoric to point fingers at people and calls them names all the time. At least you can understand it when Trump calls someone stupid.
"It's not surprising, then, they get bitter, they cling to guns or religion or antipathy to people who aren't like them" Borat Ishmiel Obama. The rest of his statements accuses Americans of being stupid immigrant hating bigots that oppose free trade and the loss of jobs to foreigners that hate America. Most pathetic Anti American insulting President ever.
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.