I'm a hunter. I'm familiar with doing research. The internet made some information more readily available, but I haven't found any similar avenues of information on this ship.
Most witches are far from it. Demons often work to corrupt them and take their souls to hell when they die. I've rarely seen witches come to good ends. But not everyone who uses magic becomes evil. I can't say what state the earth was in when I came here, as I was dead, but we'd averted the most likely way to destroy our world.