I think digging into his parents' past (let's face it: his mother's past) is an attempt to paint her in a bad light (unfortunately it seems to be doing it's job there). It is absolutely shitty and unacceptable, because it's dragging us back to the acceptable and unacceptable victims that we see so often in other cases (rape etc)
Right now there is a grieving family clutching at any and every straw, and there are enablers who should be taking a good long look at themselves and their methods (yes, CLC I'm talking about you). If they have to latch onto and manipulate cases like this in order to take them to their end goal (whatever that is, although i think we know) then they know they are in the wrong. For this i am deeply sympathetic to the parents because they really will clutch at any straw to "save" their child. They seem to honestly believe that anyone not supporting them is out to murder or execute their child.
The NHS isn't an infallible monolith. But there are no indications anywhere that I've read that the people involved here are doing anything other than the best actions in the interest of their patient.
I'm not sure about the Go Fund Me. I'm sure there must be some related costs but I just don't know about the wisdom of starting these fundraisers before everything is done and dusted. It seems distasteful and disrespectful. Am aware that other people have other opinions about this.
The one good thing that comes out of these things is that people realise how seldom it is that parents/NOK react in this way. The bad thing of course will be if organ donation really takes a hit because of it.