This is a big world. Billions - rapidly increasing billions - of people live outside our borders. Obviously, a great number of them, being much poorer than they think most of us are, look enviously over those borders and would like, if they could, to come here.
No matter how ruined man and his world may seem to be, and no matter how terrible man's despair may become, as long as he continues to be a man his very humanity continues to tell him that life has a meaning.