However, barring some major re-education – however you might want to achieve it – what you are proposing as a “solution” would entail a massive thinning of the herd through death by deprivation and ignorance. Now, maybe that’s ok with you (you did reference children as “it”s), and maybe you won’t mind if/when you and yours are the ones whose thread gets cut in a way your skill set doesn’t quite cover. But that sort of reaping would severely limit everyone’s possibilities for survival. Not to mention the pool of humans to choose from for procreative purposes (harder to find a mate when your scattered about the wilderness, and too busy trying to build shelter, find food and clean water), so the whole “stealing women from the other tribe” thing will be off the charts (something most women I know would give serious side-eye to and which women like me would probably object to in organized and fatal ways, or did you think only men would be armed and dangerous?).