Thorgalaeg
Deity
You mean homo hominis lupus, so man is a wolf to man (or a lesser hominid).The myth that will be remembered fondly is that we are all in this together. As has been mentioned, the biological imperative to protect offspring lead to family units, and tribes, because "the wild" was out there; be that wild a pack of wolves or a clan of lesser hominids. But that same drive is what produced nation states because once the wolves and the lesser hominids were thoroughly subdued "the wild" was still out there. It was us. We like to act like the old days of 'us humans are in this together' haven't ended, and that the idea that we will be invited in so we can form a mutual defense against the ever present wolves still applies, but it doesn't. Other people are going to treat a stranger like they are the wolf, not an automatic ally against the wolf...and that makes a categorical difference in 'humanity.'