This is what nobody wants to admit, whether it's nature or nurture doesn't matter because you're not in control of either of them. You were born into so and so of a family, and they brought you up with such and such care and values.

The idea that you've been "force of willing" it through your whole life since infancy and are therefore solely accountable for your outcome is absurd. We know that at some level and yet still can't help taking credit for our nice things and passing judgment on others for their failings.

Realistically, if these are the minimum conditions to reduce this kind of low-gain amplified damage, then I suspect that most people will rapidly conclude that the cost-benefit leans in the direction of immediately severing these people from the rest of society. Since the cost to deliver a sequence of events like you describe to everyone is extraordinary (and realistically unavailable even to the richest nations today) a more feasible solution is incarceration of people for a first offense for a sufficiently long time that they are simply not present to commit the crime again.

My general rule for posting sarcasm is to phrase it seriously first and see if it's something I still want to post.