By Salman Rafi Sheikh
On January 5, thousands of people, most of them Shi’ite, rallied in Karachi, Pakistan’s largest city and its most ethnically and religiously diverse. Carrying pictures of Iran’s Ayatollah Khamenei and Qassem Soleimani, the head of Iran’s elite Quds military force who was killed by a Jan. 3 US drone strike, and chanting “Death to Ame…