Ugh, I'm so sorry to you and anyone else that can commiserate with this experience. It's a really shitty place to be in.

Especially because I'm sure, like me, you do have good memories of them being loving, caring people, so it's hard to sit across the table from them and see what they've become. And to have everyone pick at you with no backup so you are completely isolated and left to fend for yourself.