I care a lot about mentally disabled people, but honestly, at times, I think it's incredibly cruel to keep them alive. If they absolutely cannot take care of themselves, what kind of life is that? I can definitely see what you're saying as being true. I can understand wanting to do everything to keep your child alive, but what if they outlive you, what happens to them? They get sent to a care home or mental institution where they get mistreated and neglected even further than what fattening them to death is. I don't advocate euthanasia, but I question that position often in regards to situations like that.