Pakhtunkhwa??
I didn't know people still want to revert back to their 1000s of year old backward tribal customs and form a state based on tribalism, something Islam abolished 1400 years ago.
Islam abolished Nationalism but there's nothing wrong with living in tribes within your own locality and customs aslong as they don't conflict with Islam as the Quran states:
O you men! surely We have created you of a male and a female, and made you tribes and families that you may know each other; surely the most honorable of you with Allah is the one among you most careful (of his duty); surely Allah is Knowing, Aware.Surah al-Hujurat (49:13)