>A parent that cares for a disabled child is only a failure as long as he does not want to do it.
I’ve seen the parents of severely disabled children. The daily work, financial cost, and social cost is immense. They don’t give up their children often out of duty and sympathy not because they ever wanted to live a life like that. They are burdened and entrapped and it’s not simply a matter of mindset.
Not even the disabled children would be keen to agree with you that their self-sacrificing parents are failures and horrible people if they feel they’ve been burdened and entrapped. THEY feel burdened and entrapped themselves. People in a bad situation can sympathize with people’s circumstances for what they are. They might resent the parent being open about their feelings, but not for having them at all.
As for why the 3rd world cab driver does not feel this way, a cab driver in the third world is often doing relatively well compared to their peers, they may have grown up in worse circumstances, and cab driving is something relatively easy to give up for a few years and then pick back up no worries. That’s not nessecarily true of the investment banker or the parent of the disabled child.