why humans be proud or where they lived?

Greetings! Unfortunately, I can't also explain nor understand what happens. We get proud of something we're not even responsible of. And we believe we are privileged or that we're better than others for that. And we go to the point of causing wars and killing people in the name of... a place? A birth place? Come on, that's insane. The great deal, though, is that the territorial lines are not simply terrain borders. They're political borders. Political frontiers. Which means POWER borders. Inside specific borders, there are valuable resources. And the ones who are born within don't want to share those, saying it's theirs. C'mon, it's ours. All of us should deserve it. Respectfully.