Hard Science Fiction or Space Opera, Cyberpunk or post-nuclear, this is the realm of Science Fiction.
The Role Playing Game Workshop: Read. Post. Play."/>
You've probebly heard of the real Thomas Hopkins, Witchfinder-General, who hunted down and hanged suspected "witches". What if there was a world/realm where magic was normal, and it was the non-witches and non-wizards who were hunted down and hanged as inferior beings?