I’m not explaining away anything, nor denying that dangerously violent or even psychotic children exist. I was specifically railing against the idea of condemning a real, life human child because you have decided that they were “born bad”, in face of the plentiful evidence that they were raised in a violent environment.
For what it’s worth I’m sorry you had to go through that, but you’re not the only one who grew up with someone unstable and violent. I would not presume to speak to your experience, but in my case I was all too privy to the neglect and abuse they were put through and it’s left me convinced that barring any actual inborn neurological damage the only way a child turns violent is if something is pushing them to act that way.