I dont have advice, but my heart aches reading all this. You have no fault here and I can not believe the cruelty you are experiencing.
Do not guilt yourself for your parents moving. If you were one of my kids, I would move too in order to help protect you. A child is worth more than anything in the world and you are theirs.
Please keep posting and talking here. You are not alone. We believe you. You matter. Your life matters.