it would be great if we could establish a caliphate. but with all the different muslim countries these days, it would be really hard. many countries have their own healthcare systems and their own tax regulations. also if we had one unified caliphate then what would the migration deal be like? will more prosperous areas like dubai be filled with people and would people leave pakistan and other poorer countries? and we know this would cause problems to have such mass migrations.
and not only that but will the caliph be a sufi or not? many muslims(most in pakistan) are sufi and would oppose to having a salafi caliph. but if we have a salafi caliph he would be opposed to the ashari aqeedah which some say if you follow takes you out of islam.
i hope and pray that a Caliphate will be established. we desperately need this. we need a society that can be regulated to minimize fitnah and that could work in the interests of our religion.
but is it realistically going to happen? i dont know. i hope so! but sometimes hope is not always realistic. at least for a certain time or under certain implication