Why did foreigners call girls "demons" in feudal society?

Women who were called demons by Europeans in the medieval period were mainly those who were considered witches. Prior to the Middle Ages, women were respected in traditional Germanic culture, especially those who made medicine, practiced medicine, and could read and write. When Christianity developed in the Germanic regions at the beginning of the Middle Ages, the Church believed that women should be absolutely subservient to men according to Christian doctrine. The Church demeaned and vilified women, fabricated images of witches, persecuted women, and even burned so-called "witches" alive. 1486, two priests, Henrich and Jacobs, wrote The Witch's Gavel, which listed in detail many ways of identifying witches, and initiated the powerful "Great Witch Trials of Europe". This book summarized for the first time the knowledge about the devil and witchcraft that was popular in the 15th century, and even provided detailed methods such as how to identify witches and how to report them, which became the "bible" for hunting witches, and the rumors about witches written in the book were taken as facts by the blind people! --This meant that thousands of women were innocently burned at the stake.