Firstly, there is no such thing as black magick. Magick is a tool, much like a hammer. With a hammer, you can build a house or tear one down.
Same concept applies with magick. Magick is colorless, but the people who weld it give it its' intention Second, The term "witch" means one who practices witchcraft or magick. So, if you take out the "black" in your question, then I can safely say, yes, witches use magick since the meaning of witch defines it as such.
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.