Did you ever read or watch the story of Dirty John? A movie was made starring Connie Britton. It’s not high art, but it’s the story of a family of a woman who’s mom was similar to yours and sister and she are both abused; one ends up dead. The mom’s reaction is strikingly similar to yours - she thinks about God’s ‘plans for women.’ There’s an excellent book, called Mother Hunger by Kelly McDaniel, that not only discusses this true story as a case study, but also the unfortunate situation when a mother hasn’t been able to do a proper job with nurturing and protecting her children, specifically daughters. It may be useful (and helpful) to you & your sister.

Her belief system and life situations didn’t allow her to even protect herself, and sadly, that has implications for future generations who would face abusive partners.