For those who wanted to kill the kids:
I don't think it's fair to kill the kids because you assume they will end up like their parents.
Same thing nowadays with cops who shoot people because they think they could be a robber/or threat without doing proper assessment.
Yeah the world here is F-cked up and almost everyone is evil, but just because those around you are evil doesn't mean you have to be as well.
The kids didn't do their parents crime, they shouldn't inherit their punishment.
Only once they do the crime themselves should they be subject to the punishments.