as MQM is not trying to address that, Karachi people should come forward who want to save this one of the largest cities in the world, form a political front and put forward these following points
1) Karachi must have an autonomous status and its should have autonomy (like hongkong in china) so that it addresses its migration, population, law and order and many things
2) karachi only shares similar currency, army with Pakistan otherwise it should be otherwise free
3) karachi should have independece over its revenue and the revenue generated should be spent in Karachi and karachi alone
4) laws of Karachi should be different than laws of Pakistan which reflect Karachi's own interest
5) the pakistanis coming into karachi should have special permits and anybody just cannot be allowed to stay in karachi permanently
6) after five years there should be a proper referendom on karachi whether it wants to politically separate from Sindh and declared as autonomous region of Pakistan if things don't work out with people's party of sindh in provnce and PMLN in the federal
i totally disagree with MQM's politics of making alliances with other parties and that it doesn't demand separation of karachi even as a separate province, MQM doesn't get karachiites to enjoy their own local government, karachiites have no authority in law enforcement, karachiites have to suffer brutal quota system, Karachi has to suffer acquairing government jobs, Karachiites can get to have their own city funds spent on it, there is complete ethnic separation and isolation and an ethnic hegemony in all matters related to the business of karachi, so if karachiites can't be given a free space to control their own city than karachi must be declared as an autonomous self sustaining city
i think if within five years MQM fails to get Karachiites to have more powers, Karachiites must form another karachi based political party to put forward these demands, if the city is to survive in future