The posters on that page are like caricatures. It is very easy to read the judgement online, Alder Hey have a FAQ page answering some of the questions regarding the case. But it is like they have no capacity to understand that Consultants from a world-renowned Children's Hospital or medical experts from around the world may just know more than them.
If they had read the judgement they would see that the Father's legal team were allowed to choose an expert for a second opinion. They could find nobody who could say there was a cure or any treatment at all. All of the witnesses agree on the prognosis.
I know the siblings are active on the AA page, I wonder how the grandparents feel in all of this. Is there nobody to tell TE to stop now. He will regret not spending this time quietly and peacefully with his son.