People who cannot reconcile the concept of Shariah, or even Islam in politics, have no business calling themselves Pakistani...no more than a person who rejects the legitimacy of Western legal and ideological traditions while claiming citizenship in a Western nation.
Even as a "non-believer" in the entire suite of Western values, I could never deny the validity and importance of said traditions to my host society...why on earth do we deny ourselves the same right? It seems like a massive inferiority complex, if anything...
In the West, there is talk ranging from limiting Muslim immigration to possible deportations....Muslim integration is deemed a problem as we don't assimilate readily and totally....and here we have so-called Muslims refusing to assimilate into their own native culture...ironically, these same Uncle Tom's are the ones who bemoan Muslims in the West who do the same...
Pakistan was not founded as an Islamic State. It was founded as a Secular Democracy for Muslims of India.
The constitution of Pakistan was secular. The Sharia was incorporated by Zia and his cronies.