This is what happens when you combine lack of knowledge with emotionalism, the result is pure idiocy. Pardon me for being harsh but most of the poeple rooting for Caliphate here do not even understand the true essence and concept of Khilafah. I have not seen a single logical argument or a road map as to how a Caliphate will be established. The one person or organization who has done the most work for Caliphate in Pakistan is Dr. Israr Ahmed and his organization Tehreek -e- Khilafat. According to him, Caliphate is not about having one ruler ruling all of the Muslim masses nor combining all the Muslim lands to create a singular empire. The true essence of Caliphate is about creating an environment and a system where the law of the God is given precedence over every/any other Law. Caliphate is about basing a society on the principles which are laid in the Quran, it's about creating a society where everything is based upon justice. When people say that we want Caliphate, it does not mean that they want someone ruling them from a 1000 miles away, but what they mean is that they want the qualities which were present in the Caliphate. They want a system which mirrors the equality, justice, prosperity and peace of the time of the Caliphate, and not just any Caliphate but the one which was present during the times of the first 4 Caliphs of Islam. You can have a caliphate under any system - be it democracy, monarchy, theo-democracy,theocracy, dictatorship or communism/socialism as long as the Law of the God prevails over anything else. Caliph itself means a person who is appointed and trusted upon to perform tasks which are delegated to him. It is much like the concept of Viceroy during the British Raj. The viceroy was to carry out the commands and wishes of the Queen/King without any hesitation where clear orders were available but was free to contemplate,deliberate and make a decision where clear instructions were not at hand.
Caliphate does not mean that the current geographical boundaries will vanish to create one Sultanate. It just means that a system should be established where a Caliph implements the commands of the God as they are. If a clear order is not at hand, then he is free to deliberate and make a decision while staying within the parameters laid down by God. The countries, their boundaries, their people and their uniqueness will stay as it is as long as they are not given precedence over the word of God. This is what Caliphate is all about in today's age. This is not my opinion but the opinion of most of the scholars who are advocating and striving to establish a Caliphate, and that includes Dr. Israr Ahmed as well.
People hate the Mullahs because they harp on without having any knowledge on the subject in discussion. People speaking in favor of the Caliphate are doing exactly the same thing. Before you jump on the bandwagon to scream your lungs out in favor of something, please make sure to gather enough knowledge and information on the subject to avoid looking like a fool.