xenophobia and evolution
even though i like to pick at the leftists here, i'm pretty liberal when it comes to immigration and lots of other things
but i do have to wonder why people are naturally so xenophobic, and why almost no country ever before modern times had a generous immigration policy
is it possible that having a preference for your own "tribe" (aka country nowadays) was useful for survival? is that still relevant or is it kinda obsolete nowadays? prob somewhere in-between