SDTG thank you. Yes you are right it can't buy hope. What it also can't buy with genetics is freedom from guilt. Misplaced but very real guilt.
Also not sure really that a big house or great job signifies freedom from money worries, amazing how much debt and liability people can run up really, and the banking sector is hardly free of difficulty right now. I know I found it harder when I thought DH was going to be made redundant than when he actually was, because at least you can work with reality.
When a genetic flaw in the boys was traced to DH and not me (surprisingly) I realised the amount of pointless, stupid guilt only as it left me. Dh is far more pragmatic and deals with it in a far more simplistic, effective 'life sucks' way.
Now if I knew there were no endpoints to this, that the only way my kids could have a break would be the day I lost them- I have no idea how I would cope. i hope I would, I suspect that nobody truly knows until it is them.
The part that surprises me is that mum didn't end her own life, that doesn't fit with past cases like this, but I haven't read much about this case deliberately.