Witchcraft has long been condemned as "satanist"; by Jewish scriptures, and even more so by Christianity. Even now, most witches would say they were "Pagan". Because so many people have been taught to associate witches with the Christian "devil", the "fallen angel" Lucifer.They talk of "black" magic, and white magic.
We know this to be utter nonsense; but it is very hard to convince people steeped in thousands of years of lies. But, as rilke says, we have power. Use it!