Because that is what they like to do Fpr LaVeyans it's a sensible, human system of alternative morality, focussing on individual responsibility and desires. Not worshipping Satan, since he doesn't exist except to theistic Satanists Also, they just feel like it. Satan was also loyal to sins and such, so I guess it leaves more freedom to do what you want.
Like, people can worship jewelry right? IT also depends on what people refer to as "Satan" maybe it is someone else, but to others who are loyal to god, that person may have some qualities that are "Satan-like Intelligent llama.
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.