Not at all, but then law should be same for everyone. Besides, how you'll feel for Punjabis or Sindhis living in the borders areas for providing shelter to the intruders from Bharat? or Baloch for letting people infiltrate from Iranian border? Not very good I guess? Afghans managed to get themselves establish in Pakistan primarily because of the FATA tribes who happen to have 'relationships' across the border. They need to be asked if they are loyal to Pakistan or Afghanistan and decide once for all.
Fata was intentionally used a cannon fodder recruitment ground by the Punjabi and Sindhi generals like Hameed Guls and Aslam Baigs. They were told that Pashtuns are the bravest and unconquerable race in the world, and that they should cross into Afghanistan to aid their fellow Pashtuns against the northern folk of Afghanistan. Our intelligence and military establishment sent thousands of Pakistani Pashtuns, mostly qabaylis into Afghanistan and Kashmir, who came back with new found Arab+Uzbek friends. The mess we are in today is not because of qabaylis alone, the bigger players are still untouchable and still given prime time tv coverage with praises of patriotism.