Hollywood has done so much damage to the image of the beautiful Wiccans. Generations of children have grown up believing that witches are ugly old people when the exact opposite is true. They are beautiful, healthy women of Nature.
Why do we even have to ask if witches are good or bad? Hollywood. And vilification by the patriachal christian church with their evil inquisitors.
A more accurate subject would be "Priests! Good and Bad"?