Teeth, language and racial origins, page-17

Haha, so true. I got lost in Paris once and the Gendarmerie just kept ignoring me when I asked for directions. I remembered somebody telling me that the French hated poms and if they thought you where a pom they would ignore you, so I spoke some gobbledygook to get their attention and then made like a kangaroo and they miraculously spoke faltering English and directed me to exactly where I needed to go.

You're probably right regarding tribalism, but until I find a better species to live with I must continue to have unfailing faith that humans can be much better than they presently are.