When a child dies because of them, I wouldn't think a parent is ready for deep introspection and admitting the terrible mistake. Mental gymnastics are to be expected, it's the mind's self defence. Perhaps after some years...
And the rest of the faceless people are fine with that if it means that the lives of others who they don't like are ruined. They gain satisfaction of if the misery of others, even if it causes them misery too. It's toxic mental illness at its worst.