I have, but I personally think this will create more hatred for Afghans in other ethnicities. The Baloch already want them out of Balochistan, and the Sindhis are fiercly nationalistic as well when it comes to this stuff. Punjabis have been brain washed to welcome all "Muslim Bradars" with their pants down their ankles and their behinds in the air. Most likely will see a reaction outside of Punjab.
Or maybe, just maybe, the Punjabis who voted for IK will be re-evaluating their voting choices. But I doubt it very much, Punjabis have been very cucked by the establishment/history.
You may be right, "Pakistan" might evolve in to becoming an "Afghan" majority/ruled nation, with cavemen wandering around stoning women on the streets while swearing at their neighbour countries' for causing them to not evolve beyond the 12th century.