A little help would not destroy Pakistan . I am a punjabi so no pustun angle there .
cant leave Islam . Pakistan and Islam goes "hand in hand"
for the afghans who have relatives there can easily be adjusted a little help and assurance by Pak gov and Afg gov for rehabilitation can increase afghan settler's confidence and that way they will leave
throwing them out forcefully will even not go well with Pakistanis and afghans will hate us "more"/at least the northern shoe polish guys they will cash on this event you can count on that .
They already hate and love Indians if social media, forums are anything to go by. Peshawar police chief couple of days ago said 70% crimes commited by Afghanis in Peshawar.