I believe only a Punjabi (such as General Zia Ul Haq) or a Pakhtoon leader (such as Imran Khan) can do this. Not Sindhis (Bhuttos/Zardaris) or Mohajirs (Musharraf) who bow down to their gora masters.
Omar, your rants do not even warrant a reply, but I'll respond anyways:
I am a Shia "Mohajir" (I don't even use this word, I'm an Urdu speaking Pakistani Muslim). I am grateful that most of the Pakistanis I have encountered in my life do not share your narrow minded thoughts against their fellow Pakistanis. I was born in Pakistan, I am as much as a Pakistani as you are, & I do not have to prove my loyalty to you or anyone else. The great thing about Pakistan is that we are Pakistanis & Muslims, & this is a much greater bond than ethnicity ever is, the latter which you ascribe to. On a personal level, even though I'm a "moderate" but practicing Muslim, I believe Pakistan's Islamic identity is imperative to our existence, the glue that sticks the different ethnicities together: especially after 1971 when Bangladesh was created, & the constant Pashtun nationalist movements that arise from Afghanistan. By establishing Pakistan's Islamic identity, we have practically nullified the threat from ethnic separatist movements. Even though we ascribe to Pakistan's Islamic identity, we do not (& should not) tolerate Islamic radicalism that threatens women, Barelvis, Shias, Ahmedis & other non-Muslims, because they are lawful Pakistani citizens as well. With the holier-than-thou attitude you ascribe to, you are indirectly condoning attacks of the radical elements of our society on our fellow Pakistanis.
If I meet a liberal Mohajir or Sindhi, or even Punjabi or Pakhtun or any other ethnicity, I do not get worked up over him/her. I do not get worked up over people that overly criticize Pakistan either, but I defend Pakistan & everything it stands for with my full heart & soul. If India, Afghanistan, Iran, Saudi Arabia or the US threaten the integrity of Pakistan, rest assured, I will be out on the street vouching for Pakistan with all my heart and soul. Do not doubt the resolve or the integrity of anyone, you do not know what is in their hearts, only Allah knows that. A lot of people are despondent about the situation in Pakistan, but they do this out of genuine care & love for the country. You or I may not agree with these people at all, but talk to them rationally, patiently. This is what Islam teaches us, what we should aspire to be as Pakistani Muslims, not pointing fingers at others & inciting violence. You should also extend this thought to ordinary citizens of all countries, most of whom do not mean ill like their governments do.
Even though I live in America, I hope & pray that Pakistan can break the shackles of the US in the region, & I hope all ethnicities (Pashtun, Kashmiri, Punjabi, Balochi, Mohajir, Sindhi, Hazara etc) can live peacefully together, & I'm optimistic that we will in the future. However, targeting a specific ethnicity for your personal gratification shows your bias & anti-Pakistan attitude. None of our ethnicities are angels, we have done some horrible things to each other in the past, but I think we have made it past those days & made great progress. Please don't display your obsolete mindset & bias here.