"I am the wisest man alive, for I know one thing, and that is that I know nothing." ~Socrates

Two completely different concepts, but both lead to the same end.
Fear.
Fear of people that we don't know.
Fear of ideas that are not our own.
Fear of invasion/insurgency.
Fear, of course, leads to hatred.
All I can say is, stop being such sissy-assed pansies. You're gonna die anyway. Is it better to die having lived everyday worrying and hating or is it better to die knowing that you've led a brave, good and happy life?