Well, I'm sorry, having seen the youtube video, my utter sympathy lies with the parents. I wasn't expecting the father to be so knowledgable and articulate. He clearly thinks he has the little boy's best interests at heart and can surely see for himself the improvement in him.
In my county there was a little boy in a similar situation and the parents got him to USA for proton beam therapy which actually saved his life, when the doctors here argued it wouldn't. My heart goes out to that family and I pray that it all ends well - what good is it that they have arrested the parents, why? They haven't done anything wrong, in fact it makes me angry. I have just experienced seeing bad medical practice when my poor Mum died in a hospital, and I'm convinced she would be alive today if it hadn't happened, so I can empathise with the parents.