KARACHI: For nearly 40 years, Baz Mir, a young Afghan who escaped war and uncertainty in his home country, called the dusty outskirts near the southern Pakistani city of Karachi his home, where he built a life from scratch in a temporary settlement for people like him. As bulldozers closed in on what remained of the Afghan refugee camp, the 48-year-old father of six watched on the walls of his modest house tremble, not just by heavy machinery but also from the emotional weight of a life being dismantled.