I do not know from where you got this 70% violence figure and how you are attributing all that violence to MQM. After all this media trial, operation, PTI etc, the Karachites still decided to vote for MQM and with the rangers present inside and outside the polling station, nobody can challenge MQM's mandate anymore. Either Karachites are totally blind or the media trial has backlashed, with latter looks more plausible a reason. You have to understand that political parties cant be wiped out just like that; Zia tried his best to damage PPP but he could not. Musharraf tried to dent PML(N) but it evolved more powerful than ever before. Similarly, no matter what and how much you throw at MQM, she will survive unless of-course, it stumbles upon a 'Zardari' of MQM who finally sinks this ship.