Let me clarify this. Republic of Ireland also does not accept the Ulster border with UK but that does not mean we can't live in peace. In fact I personally hope at some point in future the Af-Pak border becomes a soft border where citizens of both countries can move across much like Common Travel Area between UK and Ireland.
en.wikipedia.org
I know in India you guys love dwelling on this Durand Line being artificial and drawn by British. What you very deceptively ignore is every border in all of South Asia, Middle East going to as far as Turkey were drawn by European powers be they British, Russian or French. Take India. Your western border with Pakistan is Radcliffe Line, your border with China was drawn by British and of course carries the name of the British official who drew the line -
McMahon Line.
en.wikipedia.org
Indian border with Burma or Myanmar was also drawn by the British. But despite what anbyody says these are now internationally accepted borders.
Going back to Afghanistan the fact is the Kabul regime is a foreign imposed order put in place by US guns. Taliban are indigenious and that is a fact even America has not accepted. Nobody judges or measures Saudia Arabia according to liberal or democractic standards. USA, the West and the entire world is happy in supporting the primitive, misogynist monsters of the House of Saud. In fact they are happy to arm the Saudi's to teeth and even defend them as we saw in first Gulf war. They do this because of their national interest.
Diito Pakistan and Taliban. Yes to be sure there are going to be potential problems because Taliban take over might inspire the Islamists to enforce the same medieval laws in Pakistan. But that is a challange Pakistan will have to face. I believe under the able leadership of PM IK Pakistan will prevail.
This time around we are better placed to handle the storms from Afghanistan -
- border has almost all been fenced
- the FATA districts have been merged and are recieving massive developement funding. PM IK has managed to even finess Khyber Pakhtunkwa and Punjab governments to contribute to a developmemt fund toward erstwhile FATA.
- a able government under PM IK which has at least 4 senior members from FATA or districts neighbouring FATA thus give local 'purchase' to government policy.
- the pace and level of work going on in FATA is amazing. Schools, universties, motorways etc are rolling out fast.
- the number of locals from erstwhile FATA who have made it big is astounding and a role model for the you. From billionaire Peshawar Zalimi owner Javed Afridi, to Shah Afridi the cricketer to Ms Zartaj Gul the list is long.