Hello! I'm NOT the Invisible Sister!
Dear Blue Babe your story hit home to me. Even though I am not an indigenous person. The way my parents raised me and my siblings was. Family comes before everything. Both of my parents are now gone as well. I think they would be very saddened by my siblings and how splintered they have become. I have tried to support all of them, in one way or another. Yet they have ignored any request for help me that has been made. I
If I were you I would always leave the door open, for them to be part of your life. Thy to keep them in on where you are, what you are doing. Let them know if you need help. Its there responsibility to then act appropriately. At the same time if you rely need help and can get help from else where. Then go there and get the help you need. If you have enough hole a BBQ, invite family along try to have fun together as a family. All the (white man's version) aunties and uncle's together. Just having a fun day together.
I did the same with my 2 brothers and 2 sisters. Nothing came of it, but at least I gave it a try. It might not work. But family is important.
Blue Babe we are kindred spirits, both of us are experiencing similar things. All I can say is don't burn the bridges that lead back to family. There are stories they have that you need, to help to get through life. As there are stories you have that are important for them to hear.
Over the years I have had some contact with various people who identify as Indigenous. They have taught me some of there culture. I still have a lot to learn. Some of them even called me uncle, I understand why. They would come to me for advice, especially when dealing with government departments. Back then I had the contacts, not now. I was in the scouts and helped in the cubs, In there I was called Barloo who was the wise bear, who taught you what to do. Today I now resemble the bear, Big around the middle, and growl a lot, which I am trying to fix.
But keep in touch with your family, give them space, eventually you may find they will contact you and need you for something. I haven't given up on mine I know I deserve better as you do. But you can choose your friends. Your relo's you are stuck with, no choice.