When I visited the UK in 2001 I had conversation with some Kashmiri Pakistanis whose political goal was to separate from Pakistan so that the Kashmiris could have a larger percentage of the wealth of "their" land. Knowing a bit of the history of the region (having seen Ghandi among other things) I asked if their ancestors had been part of the exodus from India that formed Pakistan. It turned out that it had. I asked don't the other Pakistanis who settled elsewhere deserve a share of that bounty. They said. "No."

It answered the question in my mind about whether the problem was population or human nature ie greed.