That is the whole idea - Pakistan knows it wont survive but it will take India down with it. Its called mutually assured destruction.There is a good chance we will not survive.
But then if a country as big India, with a 6 times larger population can not survive a nuclear war..how so ever can Pakistan ever survive one.
And on what basis do you people dream of wresting Kashmir from India .. Knowing India is a nuclear armed country.
Why does Pakistan have to wrestle Kashmir from India? It is militarily impossible but what can be done is to keep a constant budget of India devoted to keeping the valley secure. India tries the same in Balochistan - some kid blows themselves up and then war comes back out and the MAD spectre comes back. If you want to live under the constant existent thread of nuclear holocaust then so be it. Pakistanis are already miserable yet surviving , they can likely take it for another 100 years with Indian and western pundits prophesies of breakup or balkanization or failed state every 10 years or so, but then can the aspring superpower do the same?