Moving Charlie is difficult but he’ll be out of that hospital and in God’s hands. Leaving him to languish longer is insane.
What if moving him causes him increased suffering or pain? Again not being on his medical team it’s not possible to say. It is my opinion only that Charlie probably has no idea of his surroundings, but I do believe that allowing him to go home to die would be the compassionate and right thing to do for his parents as long as it doesn’t add to his suffering.