I never bought into the notion of multi-cultural. I don’t believe it exists, particularly for young people. Kids in Brooklyn will play in a band on a Friday night and email or post songs from the set to their friends in Italy, and it’ll play in a club in Milan on Saturday night.
We’re moving towards a uni-cultural world.
I would agree if it weren’t for the persistence of poverty in the world, the persistence of large rural populations (alhtough this is changing, most notably in Latin America and Asia, the key factor behind the decline in birthrates in those regions), and the continued stranglehold of strong religious belief, particularly in the Islamic world.