In a cruel twist of fate, Pakistan is under threat from a group they once vocally supported in their fight against the US. Afghanistan has failed to take steps against the TTP, and Pakistan is helpless against insurgents launching attacks from their Taliban-controlled neighbor. They have reaped what they've sown with regards to support for rouge terror groups. More innocent civilians are being victimized as a result of this foreign policy blunder.
The situation with Afghanistan, and their support or indifference to attacks originating from their country, is a reality that cannot be wished away. It would be foolish to disengage with Kabul over the security situation, as it's clear that a solution can only come from cooperation between the two nations. Pakistan will continue the fight against insurgents the best it can without resorting to such drastic measures. While there is disappointment that Afghanistan is not taking measures against militant groups, Pakistan's fight is against the TTP, not Afghanistan.