I would have agreed with everything you stated Rassil bhau EXCEPT for the last part. Pakistan will never be allowed to collapse, even by our own country. The 2 reasons are that other major powers like them to keep a check on India(what India is to China, Pakistan is for India), and the others are Paki nukes and their massive, radicalized population. If there was a civil war like Syria, where would the people of Pakistan go? To the east are the deserts of Balochistan, KP is practically not feasible, and the Thar and Kutch are desert-like or swamped. Paki Punjab, having the most population, will spill over into Indian Punjab. This problem is compounded by the presence of Paki nukes which are not adequately guarded. If India is able to conduct airstrikes so deep in the Paki mainland with little to no repercussion, if the US is able to launch a raid on a city 50 km from Islamabad, and liberators/terrorists/whatever can attack major bases like Wah, Gwadar and Sargodha and hold them to siege for hours(these bases have been chosen intentionally among many others as they contain Paki nukes), what prevents some other j!hadist group from taking over their nukes? Can India either denuclearize Pak or bear a minimal impact of Paki nukes? Can India prevent a Paki refugee crisis which would make Syria seem like child's play? The day India can achieve these capabilities, a Syria-like civil war in Pakistan isn't in our interests.
Balochistan should be freed. A lower population+massive resources makes it prime for liberation. However, a gradual program of liberalism, removal of Islam!st ideologies and communism should be introduced in Pak. Follow this with a demographic change on the border areas and ghar-wapsis on a mass scale. I had recently posted an article in the thread "Practical ideas for freeing Balochistan and Sindh" to detail a feasible and long-term, but sure-fire plan to take over all of Pakistan and removal of all !slam!ic influences from the country.