PPP wants to ignite violence between Muhajirs and Pashtuns once again, even though many Punjabis and Pashtuns living in Karachi are also criticizing Dumper Mafia. They are aware of who's actually playing games from backstage.
Here's more about how someone else is trying to create ethnic animosities which Karachi has witnessed and suffered multiple times
However silence on behalf of Pashtun political leaders who have stake in the city especially ANP and Alamgir Mehsud from PTI, in the middle of all this, is something that's worrying. Especially for PTI, as they're now being viewed as someone who has put Karachi and it's betterment on the back burner.