That doesn’t mean what you think it means

(scene opens with Saturday homework extravaganza)
Alpha: (reading merit badge book!) Mom! There are aliens! This amendment gives the government the ability to make aliens US citizens!
Me: Anyone not born in this country is considered “alien”. Mexicans are aliens, Russians are aliens, the Irish are aliens.
Alpha: But we’re all human.
Me: The world is very tribal. Everyone identifies themselves by country and/or religion. That’s why we have war. People are from the “wrong” country or the “wrong” religion.
Alpha: (downcast) Humans are stupid.
Me: (with infinite gentleness) We’re not stupid. We’re incredibly shortsighted.