Kinship stinks! Long rant

I'm posting here because I'm sure many will understand. First off, I am only fostering. I have no plans of adopting. I'm hoping my sister gets it together to get them back soon. A little history: my neices and nephew were placed with DH and I due to domestic violence in the home. The children were never "directly" abused but they witnessed abuse towards my sister regularly. The have been here about a month and are adjusting really well. My sister visits usually 3 times a day (before work, lunch time and after work) because she is breast feeding the baby. Dads visits are now supervised at Tribal court because of threats towards me and my oldest son. We got a Personal Protection Order at the SW advice. I almost wish we could take back the PPO because now my BIL is directing his anger towards my sister instead of towards me. She showed up yesterday morning with a black eye and bruises because she "tripped and fell". I miss my sister or at least the relationship we had. While there is a large age difference, this is my sibling I am closest too. She was with me during a major medical emergency, I was there for the birth of all three children. She was/is my best friend. I miss being the fun auntie. I love them and have been very involved in their lives. The girls even have their own bedroom at my house because they spent so much time here. We did all the things Aunts & neices do. Now I have to have more of an authoritive role. And while I love cuddling, snuggling and playing with my nephew, I also long for the days I could hand him back to mommy when he got fussy. I haven't had to permanently care for a baby in over 22 years. I miss my family. Half of the family thinks we are out to steal the children the other half think we are saints. Neither could be further from the truth. Some don't get that if the kids weren't with us, they would be somewhere else. Thankfully, my Mom and children have been very supportive. My Mom, two oldest children and soon to be daughter in law submitted everything needed to be able to watch the kids when needed. We're just waiting final approval. We had court last week and it looks like they will be here at least 6 months. Unless my sister breaks free from her husband, I see it being longer since BIL is denying he is an abuser. And my sister flip flops on being abused. That is the only thing preventing them from going home. No drug or alcohol involved. Sister owns her home and has a job. I was hoping court would have been a wake up call, but she's still making excuses for her husband. I don't think there's a real purpose of this rant other than to get it out to people that understand.