So true. This has happened to me with my family. No abuse but my brother has acted inappropriately for more than ten years. I finally put my foot down to protect my family--dh and the kids. My entire family of origin closed ranks and tossed me and the kids. It's very common for the family to enable the sick, dysfunctional behaviour and to turn on the strong child (in this case, you). In their minds, you're the bad guy because you had the gall to highlight and name the bad behaviour, the sickness in the family. Your first, and only responsibility is to your daughter. It's hard to lose your parents this way, but it has to be this way. Good luck to you and hugs.