Afghan Pakistan border is inhabited exclusively by Pashtuns ( same ethnicity and religion) on either side.That is not the case, with India Pakistan border. Unless there is complete Pakistani state collapse, there is no threat of Pakistani refugee crisis.
States dont collapse easily, in the absence of external agression / war.. Failed states like Zimbabwe, Venezuela continue to function..
You are wrong when you say that we don't have the same issue on our side of the border as they have with the Durrand line. Just see the number of Muslims of the same ethnicities in the bordering towns and villages. Both sides speak indistinguishably well and are almost the same. Don't go by the things that you see on Wagah Border gates. There is a huge network that operates between the two countries from Rajasthan to Kashmir. Let's not forget that there are still sympathies among the radicalized Muslims in Kashmir.
We have exactly the same problem and much more worse because there are huge networks of scumbags active in the border states.
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Pakistani state has collapsed for all effective reasons. The problem is that their Military has not collapsed. Remember, the military is a deep state there; it functions like a separate country within the country. They have their own rules, their own courts, their own laws, and their own hierarchy. Whether it is allocating plush lands or running industries, the military is a money-making machine that runs like a well-oiled machine and is actually cash surplus. Despite having all the resources to understand the mentality of Pakistanis, the Indian state does not understand how they think. RAW, IB, CBI, IPS, MI, whatever planning entity is there behind the external intelligence needs to start planning for how to topple the military.
Their civilian population is nothing but a conduit and is useless for us. At their worst, they are pawns to be sent and slaughtered by the hands of our troops as cross-border terrorists. Again due to their military and ISI. GoI has been planning everything against the state of Pakistan without understanding that the state of Pakistan = the Pakistani Military-Intelligence deep state. Hitting low level soldiers will do nothing in Pakistan. They are just paid employees of their governments and killing them will only make their families miss them. The Jurnails are the real threat.