The screw is already tight a bit of hostility will make it loosen!
Just, wait and see.
They are Afghan citizens, problem of Afghanistan not ours. Deal with them, instead of burying your head in the sand and pretending they are not Afghans. Most Pakistani members in Afghan taliban movement have left after soviet defeat.
Terrorism, is exported from your side, TTP/BLA has sanctuaries there, Pakistan will return the favor if it doesn't stop.
Supporting specific groups for crippling Afghan national interests.
Name a few.
As you said now it's you guys crying for hostility
ANSF is a bunch of incompetent cowboys, relying 100% on American spoon feeding. They will only become an Afghan Army when their budget is fully paid by Afghanistan itself, until then they will remain the American version of Gurkhas [Mercenaries].
If, you think they can become a threat to Pakistan, so big that we feel "threatened", you need to rethink. Plus the Afghan military has tried adventures in the past, and were turned into one big turkey shoot by local Pashtuns, it will be repeated if the puppet command of ANSF tries to enter our territory on behalf of either the Americans or their best friends India.
The circumstances are totally different and your military establishment knows it very well.
Circumstances are not different, its just delusion. A matter of fact, Afghanistan's future will be decided by Pakistan's military and political establishment. They are clear as day, don't allow Indian presence to a level where it threatens our security,take ALL of your refugees back. Don't allow your soil to be used to activate cold start doctrine.. nothing will happen.
Unrest in Afghanistan is a cancer for our security, if there was no soviet afghan war. Pakistan today would be next to becoming a developed country. If, Karzai can make this sure, he will be supported by us which i doubt because he already is buying large number of properties in Peshawar [Prepping for his exit].