Tahir Ali, Labour MP for Hall Green and Moseley, first came under fire last month for supporting a campaign calling for a new airport to be built in Mirpur, Kashmir.
The men, led by ringleader Reece Chisholm, 37, say they are sickened by the state of Hall Green in Birmingham after the killing of 12-year-old Leo Ross in January.
Leo Ross was found by a member of the public with a stab wound to the stomach on the banks of the River Cole in the Hall Green area on Tuesday afternoon.