I have no crisis of indentity. For me it is very simple: I am a Pakistani first and foremost and of course I am also a Muslim. Currently I work in the UAE. Every one asks me where you are from??. Only after I tell them my nationality, they ask are you a Muslim.
Besides, the acid test test comes in case of war. An Indian Muslim will fight against me; where as a Pakistani non Muslim; for example Cecil Chauhdry of PAF, will fight with me.
Pan Islamism is only a dream. Try getting into any Isalmic country on a Pakistani Passport and you will come to your senses. I need to go Kuwait quite often for petroleum business. I travel on UK Passport. UK Passport holders require no visa for Kuwait. However; I am obviously not 'white'. Thus at the immigration, while my European colleagues including Japanes, get their passport stamped in no time; I am asked to wait. A couple of phone calls and computer checks and nearly 1 hour later, I get the visa stamp. Can you imagine what would happen if I only had a Pakistani pasport ?? Nationality is of utmost importance. Muslim ummah may be one but only in theory, practice is very different.
Thus all those naive compatriots who think that they are Muslims first and Pakistanis later; I have only one advice. Grow up and accept ground realities.