Also, believing in Khilifat does not make you a terrorist. If it does, then do you believe our Prophet Muhammad (s) is also terrorist?
Astaghfirallah, la howla wa la quwatta illah billah.
Can you please give references from 'Quran' or 'Hadith of Prophet (SAW)' where word Khalifa is used?
As what I know, Prophet (SAW) did not used the word Khalifa or Khalafat, neither claimed the title Khalifa for himself. Prophet (SAW) used the word Ameer for those in authority. Later, after the death of Prophet (SAW), Muslims started calling the 'head of state' as khalifa, regardless of their character or whatever. Thus, in Muslim history, there were many Khalifas amongst Omayyad, Abbasids, and Ottomans, who were drunkards, evils, murderers, and most of them were corrupts to their core.
If you believe that your Islam is not complete without a khalifa and you are seriously looking for a khalifa to fulfil your Islam, than today the Khalifa of Pakistan is widower Zardari, who as President is head of state, and thus, if your Islamic belief is that you have to have a Khalifa, than it is your Islamic duty (according to your belief) to call him your Khalifa. :D