No, of course not. Ignoring history because it "offends" is moronic.
No, because at the time slavery was legal and accepted. That didn't really change until after the Civil war, 90 years later. That doesn't make it right, but you can't apply morality retroactively.
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.