Zohar Chaye Sarah
Rabbi Yossei says that when the Israelites stood at Mount Sinai and received the Torah, their impurity ceased. The other nations and idol worshippers were still under impure influence and control. The question is why the negative side holds mainly in women.
Rabbi Yitzchak answers that Torah and the work to follow its commandments were given to men. Women don’t have to do all the precepts. They are exempt from precepts that are time-related actions. Like wearing Tefillin or Tzitzit (prayer shawl), building Sukkah, Lulav, counting the Omer and similar. For that reason, and because the Snake put impurity into the woman, women still carried impurity and can easily attract and channel witchcraft.
After the sin of the Golden Calf, all returned to their previous unclean state, men, and women. It’s harder for women to disconnect from impurity because they have the aspect of the Left and harsh judgment as the side of the Snake.
The woman is the vessel of the house and has a responsibility to keep it pure. She raises the children because she’s the only one that can nurse them. Building a pure home for the family unit has the aspect of Binah and is most important to manifest the blessings from above.
The Snake broke the link to immortality by having sex with the women, ‘grounding’ her to his Left side. After that sin, men and women must join to procreate and preserve the continuation of life in the world.
The woman goes through a monthly cycle that half of the time she can be fruitful and half of the month she carries the aspect of death because the ‘vessel’ of life that wasn’t used, dies and removed from the body. This aspect would continue until we reach the Final Redemption and achieve immortality.