I know they need to paint a scenario in their warped little minds where I'm always gonna be the bad guy.
Congratulations, goodnow, for seeing that your sisters are lost in a story that is untrue. Chances are that their entire "life" is pretty much a story they tell themselves about their own believed "identity" and the "reality" of people and things around them. They are not their story, and as long as they can not see out of it, they are as the walking dead living in illusion.
Be careful you do not do the same. Gently, kindly and nonjudgmentally investigate into your own story-life. When we clearly identify what is false, there can be a wonderful revelation as to what is genuinely true and real.
Peace to you, dear.
j