Well, as much as I hate pop music, that has become part of our culture. We live in a pop culture (not just with music). Unfortunately our culture changes more rapidly that it used to. I can't stand my heritage, so that might make me bias.
But you're right, Manj, we can't change the direction of a river. It keeps moving forward. It's not that culture is dying. It's just that the old cultures are disappearing. But new ones are popping up all over. And I think that it's better for the world as a whole to have these new cultures more wide spread. As we become more and more in touch with each other, the less we have to argue about. People will always have their differences, but if you can talk about them in open forums every day instead of it taking weeks or months to communicate, the easier it will be to bring peace.